how scientist know something happened before billion years ago
Answer:
The Big Bang is commonly thought of as the start of it all: About 13.8 billion years ago, the observable universe went boom and expanded into being.
We know that life began at least 3.5 billion years ago, because that is the age of the oldest rocks with fossil evidence of life on earth.
Nonetheless, 3.5 billion year old rocks with fossils can be found in Africa and Australia. They are usually a mix of solidified volcanic lavas and sedimentary cherts.
Explanation:
I hope this helps you !!Answer:
scientist and people have discovered things from a while ago and did research on it, such as dinosaur bones, etc.
Explanation:
A stateless nation is often subject to all of the following except __________.
A.
discrimination and oppression
B.
genocide
C.
a lack of political control or voice in government
D.
equal recognition in the international community
Please select the best answer from the choices provided.
A
B
C
D
Answer:
D.
equal recognition in the international community
Answer:
D) equal recognition in the international community
Explanation:
Got it right on Edge :)
17. Which is NOT true about oceanic and continental crust
Oceanic crust is made up of younger rocks
Continental crust is thicker than oceanic crust
Continental crust is able to sink into the mantle
Oceanic crust is made of silica and magnesium
Answer:
C. Continental crust is able to sink into the mantle
Explanation:
The ___________ plays a large role in the Rain Shadow Effect as well as the Lake Effect.
A. Water Cycle
B. Mesosphere
C. Coriolis Effect
D. Troposphere
what happens when weathering and erosion work together?
Weathering is the mechanical and chemical hammer that breaks down and sculpts the rocks. Erosion transports the fragments away. Working together they create and reveal marvels of nature from tumbling boulders high in the mountains to sandstone arches in the parched desert to polished cliffs braced against violent seas.
The boundary between the stiffer mantle and the Asthenosphere is located below Earth's surface at a depth of appoximatley
Answer:
700km
Explanation:
:)
The radius of the circle is 5.5mm. What is the diameter?
Answer:
The diameter would be 11.
observable matter makes up about what percentage of the universe?
How early civilizations influence people of today? 5 paragraphs
Tundra form at opposite blank
of the Earth,
Answer:
A tundra forms because the area takes in more carbon dioxide than it produces. The tundra is one of Earth's three major carbon dioxide sinks. Plants indigenous to the tundra region do not undergo a regular photosynthetic cycle.
how does precipitation changes with latitude and altitude
I WANT THE ANSWER FAST PLEASEEEEEEE
Answer:
Explanation:
precipitation decreases as latitude increases toward the poles (since how much precipitation air can hold depends largely on its temperature, and depending on the seasons higher latitudes are typically colder).
Which of the following is true concerning continental crust? a. It does not contain radioactive elements. B. It mostly contains heavier and denser minerals than the mantle. C. It efficiently transfers heat from the mantle to the surface. D. None of the above Please select the best answer from the choices provided A B C D.
Statement that is true concerning continental crust is It mostly contains heavier and denser minerals than the mantle.
What is Continental crust?Continental crust can be regarded as the layer of igneous as well as sedimentary, and metamorphic rocks.
This layers do form geological continents as well as shallow seabed close to their shores, and mostly contains heavier and denser minerals than the mantle. .
Therefore, option B is correct.
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The options given in the context are all incorrect in regard to the continental crust, and the correct one is none of the above.
What is Lithosphere?The outer parts of the soil that is the lithosphere are called the continental crust. It is formed along subduction zones at plate boundaries between continental and oceanic tectonic plates.
It makes up the planet's continents and continental shelves. Almost the majority of Earth's land surface is made up of continental crust.
The varied layers of the continental crust include granitic, sedimentary, and metamorphic types of rocks that form continents and shallow seafloor areas near their shores.
Therefore, the correct option is D.
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In the two-substance mixtures you have investigated so far, are there any situations where there
is more than one correct answer? Explain.
Answer:
yes
Explanation:
because one can be saturated than the other or one might be dillute.
(homogenous and heterogeneous mixtures)
Based on the nature of mixtures, the two substances may homogenous or heterogeneous mixtures.
What are mixtures?Mixtures are substance composed of two or more constituents physically combined together.
Mixtures may be solids, liquids or gases.
Mixtures can also be classified as homogenous or heterogeneous.
Therefore, based on the nature of mixtures, the two substances may homogenous or heterogeneous mixtures.
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Equator
Which number on the map is most likely located in a polar climate zone?
A.3
B.4
C.1
D.5
Answer:
Give person above me brainleist
Explanation:
*
6. The Romans were the first what?
(2 Points)
Country
Civilization
Republic
Empire
Answer:
Empire
Explanation:
Octavian's power then became unassailable, and in 27 BC the Roman Senate formally granted him overarching power and the new title Augustus, effectively making him the first Roman emperor.
...
Roman Empire.
What are 10 methods used to uncover the past climates of the earth including their strengths and weakness
The ten methods used to uncover the past climates of the earth including their strengths and weakness includes:
Making an analysis of the samples of ice core.Making scientific observation of the remnants of glacial land forms.Making a survey of the sediments which are on the floor of the ocean.Checking the fossils of old vegetation.Checking sites of ancient volcanoes.Making calculations of the animals which went extinct during the Ice Age.Dating the fossil of dinosaurs.Making deep glacier explorations.Checking the concentration of greenhouse gases.Checking for plucked rocks and U-shaped valleys.Thousands and millions of years ago, the climate of the earth was much different and there were different animals and creatures around of which the most popular ones which have gone extinct are the dinosaurs.
With this in mind, humans were probably not around during this time or if they were, they would be unable to write down the climates which people of this day and age would properly interpret, therefore this is where paleoclimatology comes in as it studies the past climates of the earth through various methods which were mentioned above.
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The Theory of Plate Tectonics suggests that the earth's lithosphere is broken up into slabs called
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Plate tectonics is the theory that Earth's outer shell is divided into large slabs of solid rock, called “plates,” that glide over Earth's mantle, the rocky inner layer above Earth's core. ... Below the lithosphere is the asthenosphere — a viscous layer kept malleable by heat deep within the Earth.
how does the elevation of the north china plain compare with that of the plateau of tibet
Answer:
The plateau of Tibet is a very tall plateau in southwestern China.
Explanation:
Need claims on negative ways humans shaped their environment across the world
Answer:
Response bias (also called survey bias) is the tendency of a person to answer questions on a survey untruthfully or misleadingly. For example, they may feel pressure to give answers that are socially acceptable.Jun 24, 2015
Explanation:
13. Which scenario most likely formed most large
lakes in North America and Europe?
Answer:
Explanation:
Many lakes, especially those in the Northern Hemisphere, were formed by glacier s that covered large areas of land during the most recent ice age, about 18,000 years ago. The huge masses of ice carved out great pits and scrubbed the land as they moved slowly along. When the glaciers melted, water filled those depressions, forming lakes.
is Egypt a developing or developed country and why?
Answer:
Egypt is a developing country.
Explanation:
the possible HDI ( human development index) score is a 1.0. a country that scores less than 8.0 is considered developing.
Egypt curecently has a score of 0.707
How do subduction zones lead to the formation of volcanic activity?
Answer:
Thick layers of sediment may accumulate in the trench, and these and the subducting plate rocks contain water that subduction transports to depth, which at higher temperatures and pressures enables melting to occur and 'magmas' to form. The hot buoyant magma rises up to the surface, forming chains of volcanoes.
what countries are located in the northern region of africa?
Answer:
Explanation:The UN subregion of North Africa consists of 7 countries at the northernmost part of the continent -- Algeria, Egypt, Libya, Morocco, Sudan, Tunisia, Western Sahara. North Africa is an economically prosperous area, generating one-third of Africa's total GDP.
Questions:
1. What is happening at Slit B? What feature occurs at the corresponding
Location on the seafloor?
At the location of the Silt B, the Magma is forced upward, thereby, creating new ocean floor and the feature which occurs at Silt B location is the central valley of the mid ocean ridge.
At the mid-ocean ridge, the seafloor is formed by plate tectonics which have active eruption features.
The mid-ocean ridge is where the seafloor spreading takes place along the divergent plate boundary.
In conclusion, at the Silt B, the Magma is forced upward, thereby, creating new ocean floor and feature of the Silt B location is central valley of the mid ocean ridge.
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the color of a mineral’s powder left behind after it is scratched on a piece of unglazed tile is its:
The color of a mineral’s powder left behind after it is scratched on a piece of unglazed tile is its mineral's streak.
What is color?
Light is the fundamental component of color. Color has the power to influence feelings, actions, and responses. The usage of the hue was mostly artistic. Three categories are primary, secondary, and tertiary were used to classify the color. Communication includes the use of color. For instance, the color red denotes both danger and affection.
The mineral powder may alternatively be called the mineral streak, depending on its color. The unglazed streak plate, sometimes known as the streak minerals, was the object that was rubbed on. The streak is the imprint still seeable on the streak plate. Surfaces that are white and firm brush against one another.
As a result, the color of a mineral’s powder left behind after it is scratched on a piece of unglazed tile is its mineral's streak.
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As a young student how important a volcanoin your life
Answer:
very important
Explanation:
because its how you can change your life
Which of the following phrases best defines migration? A. forcing others to move away from their homes B. encouraging others to move to a new place C. spreading culture from one place to another D. moving from one place to another to find a new place to live Please select the best answer from the choices provided A B C D Mark this and return
why is florence often called the ""cradle of the renaissance""?
During the Renaissance, the economy changed from a bartering economy to a money economy. ... Why was Florence called the cradle of the Renaissance? It was called the cradle because the Renaissance was called a "rebirth" and Florence was the most powerful city in the Renaissance.
what is the only continent located in all four hemispheres?
Answer:
africa
Explanation:
This geography fact also means that Africa is the only continent to have land both at the Equator and the Prime Meridian.
The mixture of water and decaying organic matter leads to the development of what type of acid?