How are the relative length of geologic time periods determined?

Answers

Answer 1

Answer:

Geologists have done the same thing to geologic time by dividing the Earth's history into Eras -- broad spans based on the general character of life that existed during these times -- and Periods -- shorter spans based partly on evidence of major disturbances of the Earth's crust.

Explanation:


Related Questions

Why is there one winter and one summer each year?

Answers

Answer:

because of the season

Explanation:

Because the earth goes in one direction and every year it restarts back to the same position

Why do we only see one side of the moon?
A) because the Earths shadow blocks the moons light
B) because of the earths gravitational pull on the moon
C) because the moon rotates at the same speed it orbits the earth
D) because of the moons gravitational pull on the earth

Answers

C. The moon rotates at the same speed it orbits the earth, that is why we can only see one side of the moon.

Answer:

its letter C

Explanation:

because of  earth's tilt we only get to see one side of the sun as we orbit

Someone help pls... Match the following key terms: 1.) Polders 2.) Strait a.) A stretch of land reclaimed from the sea or a lake. b.) A narrow passage of water connecting two large bodies of water.

Answers

1.) Polders - b.) A narrow passage of water connecting two large bodies of water.

2.) Strait -  a.) A stretch of land reclaimed from the sea or a lake.

Cause and effects of the convection currents??

Answers

Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth.

What is the current temperature to the nearest degree for the thermometer shown below?
-20 C
+30 C
-10 C
+20 C
ОС
+10 C
+10C
ОС
a. +16°C
b. +4°C
C. -13°C
d. -6°C

Answers

Answer:

C) -13°C

Explanation:

I hope this helps.

Discuss with examples any four main importance of the study of geomorphology to the socio-economic development of man

Answers

Answer: See explanation

Explanation:

Geomorphology is simply referred to as the study of landforms, and also their processes. The importance of studying geomorphology include:

1. It is necessary so as to understand the changes regarding natural reforms.

2. It is necessary to understand the potential hazards such as earthquakes, landslides that may occur and how to curtail it.

3. Identification of landform features.

4. It is vital to understand how landforms work.

Which is a definition of "civil society"? That sphere of voluntary individual, social, and economic relationships and organizations that, although limited by law, is not part of governmental institutions. Civil society provides a domain where individuals are free from unreasonable interference from government. By providing for independent centers of power and influence, civil society is an indispensable means of maintaining limited government. The arena of uncoerced collective action around shared interests, purposes and values. In theory, its institutional forms are distinct from those of the state, family and market, though in practice, the boundaries between state, civil society, family and market are often complex, blurred and negotiated. Civil society commonly embraces a diversity of spaces, actors and institutional forms, varying in their degree of formality, autonomy and power. Civil societies are often populated by organizations such as registered charities, development non-governmental organizations, community groups, women's organizations, faith-based organizations, professional associations, trade unions, self-help groups, social movements, business associations, coalitions and advocacy groups. Refers to the set of institutions, organizations and behavior situated between the state, the business world, and the family. Specifically, this includes voluntary and non-profit organizations of many different kinds, philanthropic institutions, social and political movements, other forms of social participation and engagement and the values and cultural patterns associated with them. all of the above none of the above

Answers

Answer:

All of the above

Explanation:

just took the test

The correct answer would be ALL OF THE ABOVE. All of the answers show different aspects of a civil society.

describe the distribution of earthquakes around the world ​

Answers

Answer:

Earthquakes are found along all types of plate margins as shown on this map. Volcanoes however, only occur at constructive and destructive plate margins. A lot of volcanic activity occurs in the 'ring of fire'. The 'ring of fire' is a group of volcanoes that are located along the plate margin of the Pacific plate.

Explanation:

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Earthquakes are found along all types of plate margins as shown on this map. Volcanoes however, only occur at constructive and destructive plate margins. A lot of volcanic activity occurs in the 'ring of fire'. The 'ring of fire' is a group of volcanoes that are located along the plate margin of the Pacific plate.

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Which of the following is a wind pattern change over the Pacific Ocean?
A. Quipus
B. Selvas
C. El Paca
D. El Nino

Answers

Answer:

D. El Nino

Explanation:

C I hope it’s right

Helpppp! what is the 4 digit code ??

Answers

7 5 7 8 is the answer

What did Harry Hess discover that helped prove that tectonic plates are moving?

Answers

Answer:

He realized that the Earth's crust had been moving away on each side of oceanic ridges, down the Atlantic and Pacific oceans, that were long and volcanically active. He published his theory and it came to be called “seafloor spreading.”


Imagine what it must have been like for someone from one of the early civilizations to set out on a voyage across the ocean to unknown land.
You will be packing your boat with some supplies and maybe traveling with a few of your tribe members, leaving family members behind

Answers

I packing my boat with same supplies

Why are machines & industrialization considered a "miracle" (especially to women)?

Answers

Industrialization mainly created more jobs for the people and allowed all kinds of people to make money for their families. Women mostly found jobs in domestic service, textile factories, and piece work shops. They also worked in the coal mines. For some, the Industrial Revolution provided independent wages, mobility and a better standard of living.

Answer:

Factories and the machines that they housed began to produce items faster and cheaper than could be made by hand. As the supply of various items rose, their cost to the consumer declined (see supply and demand). Women mostly found jobs in domestic service, textile factories, and piece workshops. They also worked in the coal mines. For some, the Industrial Revolution provided independent wages, mobility, and a better standard of living.

Explanation:

hope this helps have a good rest of your night :) ❤

Does hill A, B, or C have the highest elevation?
B
-300
OCEAN
-200
-100
А
RIVER

Answers

Answer:

-100

Explanation:

try looking at the numbers like their at a number line, so the farthest right number or the number closest to 0 will have the highest elevation/be bigger.

if they were asking for the hill with the lowest elevation, you would have to go with the lowest number, aka -300

describe physical factors in the study area​

Answers

Answer:

In the Physical Education Courses, there are four factors which may impact on the performance of physical activities. The four identified factors are: mental, emotional, social, and physical.

Which of the steps shown in the water cycle diagram mainly occur due to the force of gravity?
Select the three correct answers.

Answers

Answer:

precipitation

Runoff

infiltration

n Groundwater flow

Explanation:

How many natural physiographic regions does Texas have?

Answers

Answer:

four major physical regions

Explanation:

By residents, the state is generally divided into North Texas, East Texas, Central Texas, South Texas, West Texas and, sometimes, the Panhandle, but according to the Texas Almanac, Texas has four major physical regions: Gulf Coastal Plains, Interior Lowlands, Great Plains, and Basin and Range Province.

pls hurry i timed Summarize the following excerpt and explain the meaning of the underlined word.

As more was discovered about BSE and how it was spread, several different restrictions on feed were passed over a period of several years. The main goal was to preventing the practice of feeding dead ruminants to other ruminants. The fact that the practice could save money didn’t matter; the risk of infection was too high. Eventually, throughout Europe, Asia, and North America, it became illegal to feed felled animals or slaughterhouse ruminant waste to cows.

Answers

Answer:

Ruminant animals are those whose stomachs are divided into compartments. Some examples of these animals are yak, sheep, goats or deer. However, there is more to it as there are also different types of ruminant animals. In this Animal-Wised article we're going to talk about the four main groups of ruminant animals. And the definition is, an even-toed ungulate mammal that chews the cud regurgitated from its rumen. The ruminants comprise the cattle, sheep, antelopes, deer, giraffes, and their relatives. Ruminants are herbivorous mammals that are able to acquire nutrients from plant-based food by fermenting it in a specialized stomach prior to digestion, principally through microbial actions. The process, which takes place in the front part of the digestive system and therefore is called foregut fermentation, typically requires the fermented ingest to be regurgitated and chewed again. The process of rechewing the cud to further break down plant matter and stimulate digestion is called rumination. The word "ruminant" comes from the Latin ruminare, which means "to chew over again".

Explanation:

What is at the bottom of the ocean?

Answers

Answer: The seabed (also known as the seafloor, sea floor, or ocean floor) is the bottom of the ocean, no matter how deep. All floors of the ocean are known as 'seabeds'.

Explanation:

Answer:

The bottom of the deep sea has several features that make the bottom a more diverse ecosystem. The main features are mid-oceanic ridges, hydrothermal vents, mud volcanoes, seamounts and cold seeps. But features such as canyons can also occur. Special forms of a diverse environment are the carcasses of large animals

Explanation:

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Which of the following rivers is an important transportationroute, source of hydroelectricity, AND is the longest in all of Europe?
the Rhine
the Danube
the Dnieper
the Volga​

Answers

The Volga river is the largest river in Europe, so that should be the answer.

0/2
X Why are cities sometimes called "heat islands"? Support your answer
using data from the table. *
Albedo
0.1 -0.15
Surface
Corrugated roof
Colored paint
Trees
0.15 - 0.35
0.15 - 0.18
0.05 -0.2
Asphalt
Concrete
0.25 -0.7
Grass
0.25 -0.3
Ice
0.3 -0.5

Answers

Answer:

these question are not in detail..

Explanation:

make them in details then we can answer

True or False: The Mid-Atlantic Ridge is an example of a convergent boundary.

Answers

Answer:

true

Explanation:

Answer:

False. The Mid-Atlantic Ridge is an example of a divergent boundary.

Explanation:

Hope this helps

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What type of bedrock do mountain landscapes have

Answers

Answer:

Sedimentary is the type of bedrock the moutain landscapes have.


Sedimentary

What aren't the Catskills true mountains? Because the underlying bedrock is flat, sedimentary layers.

2. You know that energy decreases with distance, but what does your experiment tell you about the relationship? Look at the graphs, which are different ways to measure something decreasing over distance or time. Based on your experiment, which graph resembles the way the sun’s energy decreases over distance?

Answers

Answer:

Love the question but unfortuantly i'm an idiot

Explanation:

A) What kind of eclipse is shown above?
B) what is the lunar phase in this image? Explain how you know.

Answers

Answer:

Lunar

Explanation:

A lunar eclipse occurs when the Moon moves into the Earth's shadow.

Characterize the southern region using the three maps.

Answers

Formal (Uniform) Region.
Functional (Nodal) Region.
Perceptual (Vernacular) Region

Please help (15 points) use your own words and not someone else's from brainy please

In terms of their features, how are the Indus Valley and the Shang civilizations similar? Write one to two paragraphs discussing the similarities between the two civilizations.

Answers

Answer:

you can put some elses answer for this question into quillbot and it rewrites it for you.

Explanation:

:)

What is aid and development

Answers

Answer:

aid is most benefication lead to low income countries because of such country use 8 receive for the provide education and all the health care for citizen which which will improve economic growth in the long run

hi please help im giving out brainliest to the person who answers correctly
What geographic factor allowed new ideas to spread to Italy?

Italy’s long coastline had many major trade centers.
Italy’s many rivers were natural highways between cities.
Italy’s mountains separated cities and prevented conflict.
Italy’s eastern location allowed many land routes to trade centers in Asia.

Answers

Theoretically the 1st or 2nd are correct, Italy has a large coast and decent northern rivers. Out of the two though I would choose the coastline.

The geographic factor that allowed new ideas to spread to Italy was its long coastline, which had many major trade centers. Italy’s many rivers were natural highways between cities.

What is geography?

The term geography is the study of lands rivers and locating are being there in it as we see that the agribusiness part can be considered in it as we see there are many geography people are also there who research things as well and make a better search on agriculture as well.

The geographic features that led people to settle in Italy were that it had many geographic advantages, as it was the middle peninsula and the heart of the Mediterranean Sea; because of that, there was a bridge between the east and the west as well as north and south.

Therefore, option (a, b) is correct.

Learn more about geography here:

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what are the two main uses of land in Cuba?

Answers

Answer:

Arable land covers nearly one-third of Cuba. The soil is highly fertile, allowing up to two crops per year, but the highly variable nature of annual precipitation has historically plagued agriculture. Subterranean waters are important for irrigation.

Explanation:

Answer:

agricultural land: 60.3% (2018 est.)

arable land: 33.8% (2018 est.)

permanent crops: 3.6% (2018 est.)

permanent pasture: 22.9% (2018 est.)

forest: 27.3% (2018 est.)

other: 12.4% (2018 est.)

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