an environmental engineer wants to examine the permeability of different soils to determine the best natural containment system to protect groundwater from pollutants. the engineer tests four different soil samples, places them into a wet column, and pours 50ml of water over each sample. the engineer records the total amount of water that moves through the column as well as the total amount of time for the water to fully percolate through the soil. the data from the study are shown below.

Answers

Answer 1

According to the information of the fragment the sample of material chosen as the potential container material is the independent variable of the research.

When conducting research we have the opportunity to use different types of research. One of them is that of the dependent and independent variables.

An independent variable represents a quantity that is modified in an experiment. On the other hand, dependent variables are those that represent a quantity whose value depends on how the independent variable is modified.

According to the above, in the situation presented, it can be inferred that the independent variable is the sample of material chosen as potential container material and the dependent variable is the results of the investigation that will have different filtration results for each type of soil.

Note: This question is incomplete because the question is missing. Here is the question:

Which of the following best describes the independent variable in this research design?

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Related Questions

WILL GIVE BRAINLY


Provide an approximate elevation for points W, X, Y, and Z (Z is pointing right to the line).

Answers

Answer:

the distance between w an x is 2 the distance between x an y is 4 and the distance between y and z is 9

Explanation:

brainliest if this helps?

This is geography based. Trust me!


What is the current weather at your house? For me, it is windy and rainy.

Answers

Answer: Its usually hot but this week its Windy and cold

It’s very foggy and cold

How to mine bedrock..........

Answers

Answer:

Wen your creative mode that's all

Answer:

How to mine bedrock..........

Bedrock is a block that is not intended to be broken in Survival mode.But u can break it in creative mode xD

A precious natural resource was found below a lake in 1914. Today the lake's surface is a thicket of derricks. Wealth from this resource has helped make this country one of the richest in Latin America. What resource was found? What is the name of the lake? What is the name of the wealthy country?​

Answers

The precious natural resource that found during exploration below the lake in 1914 is natural oil (crude oil).

The lake was known as Lake Maracaibo in the country called Venezuela which is located in South American (Latin America).

The oil which was discovered in Lake Maracaibo sits above one of the world's largest oil fields.

Today the lake's surface is filled with thicket of oil derricks and the economic wealth derived from the oil exportation has helped Venezuela to become one of the richest countries in Latin america.

In conclusion, the precious natural resource that found during exploration below the lake in 1914 is natural oil (crude oil).

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Cone-shaped deposits of sediment often found at mouth of stream canyons in arid and semiarid climates are called

Answers

Answer:

the answer is alluvial fans

A spot where magma rises to the surface, breaks through the crust and builds a structure can be seen as a ________________.

Answers

The correct answer is Volcano

Which of the following statements about erosion is true? a. Erosion occurs as a result of drastic changes in temperature. B. Erosion occurs when wind or water moves over sediment, soil, or rocks. C. Physical and chemical are the two types of erosion. D. Movement is not required for erosion to take place. Please select the best answer from the choices provided A B C D.

Answers

Answer: C

Explanation:

Answer:

c

Explanation:

What could be done to avoid flooding?​

Answers

Answer:

use bigger dams,

the underground system clear

make sponge city

One way you can avoid flooding is Stronger dams,

Sometimes a diffusion process encounters barriers that slow or stop the spread of an innovation. Which of the following is an example of such a barrier?A lack of infrastructure to support a new technology
a. A lack of infrastructure to support a new technology
b. A change in the price of energy
c. A jump from contagious to hierarchical diffusion
d. A transition from stimulus to contagious diffusion
e. A new form of media to broadcast information

Answers

The option that is an example of a barrier in a diffusion process that slow or stop the spread of an innovation is the lack of infrastructure to support a new technology.

The process of geographic diffusion can be understood as the dissemination of ideas, people, culture, things, technology, diseases, etc., from one place to another.

As an example, globalization, which is an example of spatial diffusion, that is, it starts at a point of origin and is spread very quickly to other places.

Therefore, a barrier in a diffusion process that slow the dissemination of an innovation is the letter a. lack of infrastructure to support a new technology.

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HELP FAST 100! POINTS AND BRAINLIEST!

Surface Water Lab Report


Introduction

Using models is very important in science. In this lab, you will design a model that will help you investigate the relationship between land surfaces and water on Earth.

Problem:

How can we use the relationships between land surfaces and water to understand conservation of resources and pollution?

Hypothesis:

After completing steps 1 through 5 in your procedures, predict the number and locations of watersheds that will form in your watershed model.

For example:

Based on the positions of landscape features in my watershed model, I predict there will be ________ number of watersheds located at these locations in my model: __________________________________.

Materials:

If you would like to create your watershed model by hand, you will need the materials listed.

Note: There are alternative procedures that do not require these materials.

one sheet of plain white paper

several sheets of old newspaper, or wax paper if available

one water-based marker (Note: do not use permanent marker)

one spray bottle containing water (place on “mist” setting)

digital camera, if available

Procedures:

Place several sheets of newspaper or wax paper over a large flat surface, such as a kitchen counter. Use at least five sheets of paper so that you can protect your work area.

Crumple the sheet of white paper into a loose wad.

Uncrumple the sheet of paper so you can lay it on your work surface. The paper should not be flat but should be wrinkled and puffed up from the crumpling.

Imagine the paper as a miniaturized version of mountains, hills, valleys, and other landscape features. If your paper is so flat that you can't imagine these features, you should recrumple it.

Use the marker to color the major folds or ridges in the paper, as well as some of the minor folds or ridges. Do not allow the marker to color any other part of the paper.

Place the paper on top of the newspaper on the counter, and then lightly mist the piece of paper with the spray bottle. Don't spray too heavily: Three to seven squirts will probably do the job.

Stop misting as soon as you see some of the colored water starting to collect in some of the valleys. Watch for a few moments as stream patterns develop over the paper.

If you have access to a digital camera, take a photograph of your work and include it in your Data and Observations.

Record your observations of each watershed that forms in Table 1. Take note of headwaters, channels, divides, tributaries, mouths, floodplains, precipitation, and infiltration in your descriptions.

Complete the Questions and Conclusion section of the lab report.

Procedures without materials:

Use the video demonstration of a watershed model linked on the lesson assessment page to complete the information below and answer the questions.

Data and Observations:

If you were able to take a photograph of your paper, or a screenshot of the demonstration, include a copy of this photo and label each of your watersheds in the model.

Table 1: Observations of Watershed Model


Observations


Source of Surface Water

Location on Model

Watershed 1






Watershed 2






Watershed 3








Questions and Conclusion

View the surface water animation clip of the Mississippi watershed in the lesson. Compare what is happening in this animation to what occurred to your watershed model.

Identify and describe all the ways water moved in your watershed model. Be sure to include headwaters, channels, divides, tributaries, mouth, floodplains, precipitation, and infiltration in your description.

How many different watersheds were in your model? How were you able to identify them?

Earth’s landscape can change over time. What can happen to a watershed as a result?

Based on what you observed in the lab, why does pollution become more than a local problem?

In conclusion, how did your prediction of watershed locations match the watersheds in your model?

In what ways could you continue to investigate the behavior of surface water and the creation of watersheds? How would further investigation provide research for strategies to solve the spread of water pollution?

Answers

hope this helps :)

pls brainliest if correct

does anyone have the answers to the unit 5 lesson 10 history unit test on migration and cultural exchange????????

Answers

Answer:

If you search "unit 5 lesson 10 history unit test quizlet" you might get it. Make sure you include the word "Quizlet" at the end.

Explanation:

what are some limits on a access to popular culture

Answers

Answer:

The principal obstacle to popular culture is lack of access to electronic media. Access is limited primary by lack of income. In some developing countries access is also limited by lack of electricity, cell phone service, and other electronic media.

Explanation:

I hope this helps!

An underground area where water can accumulate, often creating in a source of drinking water, is referred to as a(n)

Answers

Answer:

aquafor

Explanation:

What the Earth process is illustrated below a.hydrologic cycle b.rock cycle c.carbon cycle d.erosion cycle

Answers

Earth's water is always in movement, and the natural water cycle, also known as the hydrologic cycle, describes the continuous movement of water

The Rock cycle is the Earth process which is illustrated below.

What is the rock cycle?The rock cycle is a concept that is used to explain how the three basic rock types are related and how Earth processes.The rock cycle gives scientists and engineers an idea of where energy sources mainly fossil fuels, which are found only in sedimentary rockThe rock cycle also gives scientists and engineers an idea of building materials such as marble or granite may be locatedThe Rock cycle involves igneous intrusion, uplift, erosion, transportation, deposition as sedimentary rock, metamorphism, and further melting and igneous intrusion.

Hence, Option B is the correct answer.

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#SPJ2

Many dinosaurs fossils have been found in the UK. Bet none ane less than 65 million years old. Explain​

Answers

Well it’s simply because dinosaurs went extinct 65 years ago so if you were to find a dinosaur fossil, it would be 65 years old or more, not less.

Explain how agriculture is related to human settlements

Answers

Answer:

Agriculture allowed people to stay in one place, and increased food production caused the population density to expand far beyond levels that could be sustained by hunting and gathering alone. This growth in population density provided a critical mass of people to sustain and spread contagious infectious diseases.

Answer:

Agriculture allowed people to stay in one place, and increased food production caused the population density to expand.

Explanation:

5) This population distribution is best explained by
A) recent movements of people's due to the Arab Spring.
B) previous migrations of colonial people's to imperial capitals.
C) the reluctance of European Union members to admit foreign peoples to their nations.
D) the willingness of European Union members to admit foreign peoples to their nations.

Answers

Answer:

C.

Explanation:

It is because of previous migrations to imperial capitals. There aren't a lot of people moving to London now but in the 1800-1900s there were Indians and Africans coming to seek a better life under English rule but countries in both of those regions were also controlled by Britain.

Answer:

the reluctance of European Union members to admit foreign peoples to their nations.

Explanation:

The distribution is reference to pre world war or British era .

The people British were ruling were also coming to British rule in London to live a better life

So option C is correct

The ___ is the entire geographical area drained by a river and its tributaries; this area is characterized by all runoff being conveyed to the same outlet.

Answers

A river/drainage basin or watershed is the entire geographical area drained by a river and its tributaries; this area is characterized by all runoff being conveyed to the same outlet.

RainbowSalt2222

PLEASE ASAP
Which continent needs anti-natal policies, but struggles with the means to effectively implement them?A) AsiaB) EuropeC) AfricaD) North America

Answers

Answer:

c

Explanation:

Mark as brainliest pls

Answer:

D

Explanation:

Anti natal policies has one aim

That's to increase nature The nature which is invaded by the rise of population .

On latest survey US and Netherlands are spotted out among anti-national countries

So it should be North america

A 2010 volcanic eruption in Iceland sent huge plumes of smoke and ash nearly seven miles (11 km) into the atmosphere, where they were carried by wind toward ______________ Europe.

Answers

A 2010 volcanic eruption in Iceland sent huge plumes of smoke and ash nearly seven miles (11 km) into the atmosphere, where they were carried by wind towards Northern Europe.

U-shaped mountain valleys that may contain rocks that have been polished or appear to havenear parallel scratches on the surface are most likely formed by:

Answers

U-shaped mountains that may contain rocks that have been polished or have near scratches are formed by glacial erosion.

Glacial erosion occurs due to the fact that melt water would find their way to be under the cracks that are in a rock. Due to the fact that the water would freeze, it would cause the rock to push out.

Glacial lakes would form due to glaciers that begin to melt after they have been formed in a particular place overtime.

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what is the first egg or chicken to do if brainliest when there is an explanation

Answers

Answer:

Chicken.

Explanation:

Without Chicken, Chicken egg does not exist.

At the present time, scientists are confident that _____ processes and features are not restricted to Earth.

Answers

Answer:Geologic

Explanation:

the southernmost himalayas are known as _____

Answers

Answer:

Siwalik Range

Explanation:

Southernmost range of hills in Himalayas. Near Nepalese border with India.

I NEED HELP RIGHT NOWW! What issues are on the United Nations agenda for sustainable development for 2015?

Answers

Answer:

to find new ways to improve the lives of the world's people, to eradicate poverty, to promote prosperity and well-being for all,

Explanation:

The goal of the plan: to find new ways to improve the lives of the world's people, to eradicate poverty, to promote prosperity and well-being for all, to protect the environment, and to fight against climate change.

how long does it take for sunlight to travel from the surface of the sun to the earth

Answers

8 minutes and 20 seconds

Answer:

It takes 8.3 minutes for light to travel from the Sun to the Earth.

which temperature most likely corresponds to the asthenosphere

Answers

Answer:

The lithosphere-asthenosphere boundary

Explanation:

because is conventionally taken at the 1300 °C isotherm. Below this temperature (closer to the surface) the mantle behaves rigidly; above this temperature (deeper below the surface) it acts in a ductile fashion.

why did some european monarchs try to adopt enlightenment ideals?

Answers

Answer:

To be the only country to do so

Answer:

The enlightened despots supported the philosophies ideas. They also had no intention of giving up power. The changes they made were motivated by 2 desires: They wanted to make their countries stronger and their won rule more effective.Explanation: yea

The Danube River, eastern Europe's major waterway, flows from Germany's Black Forest to the Black Sea. The river is seriously affected by the agricultural runoff of fertilizers, which encourage the growth of algae. Explain why organic farming methods might help solve this problem.​

Answers

Answer:Organic farming would help reduce pollution in the Danube because no chemicals or fertilizers are used to produce crops.

Explanation:

Haiti's 2010 earthquake resulted in over 230,000 deaths whereas Japan's 2011 earthquake resulted in 20,000 deaths. What explains the differences in loss of life

Answers

Japan 2011 Earthquake = 20,000 deaths
Haiti 2010 Earthquake = > 230,000 deaths

The decrease in life loss comparison between Haiti in 2010 and Japan in 2011 is greater than 210,000.
Other Questions
Journal 24--Respond using three complete sentencesSomeone at school invited you to a party and you want to go, but you know the family has a dog and youre scared of dogs. What will you do? I NEED HELP PLEASE I WILL GIVE BRAINLIEST Pretend you are a citizen of the Republic of Texas. Give two pros for annexation to the United States and two cons for annexation to the United States. Now that you have reviewed the pros and cons, what do you think would be the better choice? .5 sentences Is an estimate considered an opinion ? HOMEWORK HELP OOH is an acronym for thepublished by the U. S. Bureau of Labor Statistics?A: Occupational Outreach HandbookB: Outlook/Outreach HandbookC: Occupational Outlook HandbookD: Open Occupation Handbook Im having ALOT of trouble writing my own thesis statement for my research paper. Can someone please give me an example of a thesis statement for a research paper? Does a thesis statement start with a question? Im confused a little 16. He often lets me to use his mobile phone. A B C D17. I asked John please pick me up at 7 oclock that evening. A B C D18. You run too fast for me to keeping pace with. A B C D19. Dont forget sending me a cable when you arrive in Ha Noi . A B C D20. Mary speak English very well. She has spoken English since she was a little girl. A B C D Which is the quotient for 0.9 divide by 0.75 Help...Question 1 Objective: Apply properties of rhombi to solve mathematical and real-world problems. Rhombus LMNO is shown with its diagonals. Angle MNO measures 119. What is the measure of angle LMN? M P N o what are three common ingredients of candied yams? The 5.0-m-long rope in (Figure 1) hangs vertically from a tree right at the edge of a ravine. A woman wants to use the rope to swing to the other side of the ravine. She runs as fast as she can, grabs the rope, and swings out over the ravine. When she's directly over the far edge of the ravine, how much higher is she than when she started? Given your answer to Part A, how fast must she be running when she grabs the rope in order to swing all the way across the ravine? Explain how you could solve the following using equal groups.Linda wants to bake 48 cookies. The cookie tray has room for 8 cookies. How many batches will she have to bake to make 48 cookies? What caused the riots in Southern California during the 1940s?African Americans andcommunities in the 1940s adopted a style of clothing calledsuits. In1943, awas beaten by a Mexican American youth wearing this style. This led to several riots in Southern California. Why was Timbuktu an important ancient city in West Africa? a.. It was the city to which Muslims make the hajj b. It was the ancient homeland of the people of Ghana c.. It was an extremely prosperous farming village on the Niger River in West Africa d. It was a center of Islamic learning in Africa PLEASE HELP ME ASAP I'M BEING TIMED!!!!! WILL MARK BRAINLIEST!!!! Which line from the text explains the importance of his father's reaction to the narrator?A new light seemed to dawn upon my mind, and bounding with joy, I communicated my discovery to my fatherMy father looked carelessly at the title page of my book and said, "Ah! Cornelius Agrippa!It is even possible that the train of my ideas would never have received the fatal impulse that led to my ruin.I read and studied the wild fancies of these writers with delight; they appeared to me treasures known to few besides myself. Adult tickets to the fall play cost $8 and student tickets cost $4 . The drama class sold 30 more adult tickets than student tickets to the fall play. If the class collected $840 from ticket sales, how many adult tickets were sold?The drama class sold blank adult tickets. Which two types of information are written in an element's box in the periodic table? I think it is B,D What is the weight of one serving chiken I could really use MisterBrainly right now! 50 points and brainliest for first correct answer Triangle ABC is dilated by a scale factor of 3. Find the vertices of the new triangle DEF if the original vertices are A(-1, 1), B(2, 7) and C(3, -3).What are the new coordinates? where did you get this information? A store manager predicts that 120 hats will be sold if each hat costs $16. The manager predicts that 4 less hats will be sold for every $1 increase in price. For what prices can the manager predict that at least 80 hats will be sold?