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Tutor profile: Ellen S.

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Ellen S.
Earth Science Tutor
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Questions

Subject: Geology

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Question:

How does plate tectonics fuel the rock cycle?

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Ellen S.
Answer:

Plate tectonics is the theory of the movement of the earth's crust. The crust is comprised of the lithosphere and is broken up into pieces that move on top of a softer layer underneath (the mantle or aesthenosphere). The plates move from the convection of heat in the mantle below and these plates interact with each other. The different movement of the plates cause rock material to be heated, melted, pressurized, or cooled resulting in different types of rocks. This rock material is cycled throughout via the process of plate tectonics.

Subject: Environmental Science

TutorMe
Question:

How has climate change contributed to the acidification of the oceans?

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Ellen S.
Answer:

The ocean is slowly become more acidic, with a decrease in its pH level, by absorbing carbon dioxide from the atmosphere. A major cause for climate change is the burning of fossil fuels and this causes the level of carbon dioxide in the atmosphere to increase. When this happens, the ocean absorbs some of that carbon dioxide. When the carbon dioxide dissolves into the ocean, it reacts with the water and turns into carbonic acid.

Subject: Earth Science

TutorMe
Question:

Is the earth an open or closed system for energy and matter?

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Ellen S.
Answer:

The earth is an open system when it comes to our energy. The earth receives its energy from the sun in the form of solar radiation. This energy is used to fuel many of the earth's processes. The earth is a closed system in terms of matter. All of the matter on earth does not get destroyed or leave the system. Instead, it is cycled and reorganized.

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