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Earth Sciences

Earth Sciences is the study of the Earth in terms of Geography, Geology, Geophysics, etc. It combines the use of Sciences such as Biology, Chemistry, Physics and Mathematics to understand the Earth System.

34,763 Questions

Weight of CO2 released by all Life on Earth per year?

Approximately 104.6 billion metric tons of carbon dioxide are released by all life on Earth each year, including both natural processes like respiration and decomposition, as well as human activities. This is part of the carbon cycle and plays a crucial role in regulating Earth's climate.

Approximately what percentage of earths fresh water is frozen in ground water?

Approximately 30% of Earth's fresh water is frozen in groundwater. This groundwater is stored in underground aquifers, which provide a crucial source of freshwater for drinking and irrigation.

How did ancient bacteria shape our planet?

Ancient bacteria played a crucial role in shaping our planet by producing oxygen through photosynthesis, leading to the oxygenation of Earth's atmosphere. This oxygenation enabled the development of more complex life forms and contributed to the evolution of diverse ecosystems. Additionally, bacteria have influenced the composition of Earth's atmosphere, oceans, and soils through processes such as nitrogen fixation and decomposition.

What do you call when the earth is not facing the sun?


There is always 50% of the Earth facing the sun and 50% NOT facing it. If you
happen to be on the half that's not facing the sun, you would call that "night".

How the earth got its shape?

The Earth's shape is due to its gravitational forces and rotation. These forces compress the planet slightly at the poles and bulge at the equator, creating an oblate spheroid shape. The Earth's shape is a result of a balance between these gravitational forces and its spinning motion.

Why would polluted air be more likely to from fog rather than clean air would?

Polluted air has more particulate matter, such as soot and dust, that can act as condensation nuclei for water droplets to form fog. These particles provide a surface for water vapor to condense on, leading to fog formation. Clean air typically lacks these particles, making it less likely to form fog.

What does the earths axis always point towards?

the axis is a imaginary line that cuts trough the earth it points southwest and northeast

Why do land breezes develop at night in coastal regions?

Land breezes develop at night in coastal regions because the land cools down faster than the ocean. As a result, the relatively warmer air over the water rises, creating a region of lower pressure. Cooler air from the land then moves towards the lower pressure area over the water, resulting in the development of a land breeze.

What is carbonation and how does it form?

Carbonation is the process of dissolving carbon dioxide gas in a liquid. It forms when carbon dioxide gas is introduced into a liquid under pressure, which allows the gas to dissolve and create bubbles. This is commonly used in beverages like soda and sparkling water to give them a fizzy or bubbly texture.

What was the world called before the countries all split apart?

I'm not clear on your question, but it was called Pangea before it split.

The super continent PangeaAbout 180 million year ago there was only one continent called Pangea, that began to break up into separate continents. Over time as the land masses moved apart it formed the continents we know today. They are still moving.

There were no countries 180 million years ago. Countries are boundaries, as man divided the land into separate territory.

How does wind erosion change earth surface?

Wind erosion changes Earth's surface by removing and transporting soil and sediments from one place to another. This process can lead to the formation of features like sand dunes and wind-carved rock formations. Over time, wind erosion can also impact local ecosystems, nutrient cycles, and agricultural productivity.

How long ago was a diplidocus living on earth?

Diplodocus lived during the Late Jurassic period, around 154-152 million years ago.

What is an example that explains the four earth systems connections?

An example would be how deforestation (biosphere system) can lead to changes in the water cycle (hydrosphere system) as trees play a role in absorbing and releasing water. This, in turn, can impact weather patterns and climate (atmosphere system). Additionally, the loss of trees can affect soil erosion, which further impacts the biosphere system by altering habitats and biodiversity.

What physical characteristic of the bedrock responsible for oldest rock?

The physical characteristic of bedrock responsible for the oldest rock is its age. The oldest rock forms the foundation of the Earth's crust and is composed of minerals that have remained relatively unchanged for billions of years. This bedrock provides valuable information about the early history of our planet.

What is the force that squeezes together the crust?

The force that squeezes together the crust is called compression. This force is usually caused by tectonic plate movements, which can lead to the folding and faulting of rock layers.

How often does the Earth's surface change?

The Earth's surface is constantly changing due to natural processes such as erosion, volcanic activity, plate tectonics, and weathering. These changes can occur over short periods of time due to events like earthquakes or landslides, or over longer periods in response to gradual processes like the movement of tectonic plates.

Where does convection occur within earth?

Convection occurs in the Earth's mantle, specifically in the asthenosphere. This is a layer of partially molten rock that lies just below the solid upper mantle. Heat from the core causes material in the asthenosphere to rise, cool, and then sink back down in a continuous cycle, driving the movement of tectonic plates.

What parts are youngest on earth's crust?

Directly along active oceanic ridges, such as the mid-oceanic ridge in the Atlantic (which Iceland straddles) and on active volcanoes, such as Hawaii. When lava from volcanoes such as Hawaii and the mostly undersea volcanoes of mid-oceanic ridges cools, it solidifies into brand new rock.

What is the relationship between Earth and Inertia?

Earth is subject to the principle of inertia, which states that an object in motion will remain in motion unless acted upon by an external force. This means that Earth will continue to orbit the sun in a straight line unless influenced by gravitational forces from other celestial bodies.

How old was earth believed to be when the first early relatively stable land masses formed?

The first early relatively stable land masses formed around 3.5-3.8 billion years ago, shortly after Earth's formation around 4.5 billion years ago.

To Which spheres do the clouds and the soil belong?

Clouds belong to the atmosphere sphere, while soil belongs to the geosphere sphere.

How does the angle at which the Suns rays strike the earth affect the temperature at earth surface?

If the sun's rays hit the Earth's surface at a direct spot, which is usually around the equator, that area would be the warmest. Any area that is far away from the sun's rays is usually cold.

What process allows temperature on earth to remain within a suitable range in order for life to exist?

The greenhouse effect is the process that allows Earth's temperature to remain within a suitable range for life to exist. Greenhouse gases like carbon dioxide and water vapor trap heat in the atmosphere, preventing it from escaping into space. This helps to maintain a stable climate and temperature on Earth.

What is an elliptical satellite?

An elliptical satellite is a type of satellite that orbits Earth in an elliptical path, meaning its distance from Earth varies throughout its orbit. This results in the satellite moving closer to and farther from Earth as it completes its orbit. Elliptical satellites are commonly used for applications like communication and remote sensing.

When a mineral breaks along a weakly boned plane it is called?

A mineral that breaks along a weakly bonded plane is called "cleavage". Cleavage is the tendency of a mineral to break along smooth, flat surfaces determined by its internal atomic structure.