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Why is geothermal energy sustainable?

Answer 1

Because it is using a naturally-occuring and essentially inexhaustible source (earth's core energy and water cycle).

It is sustainable, but like hydroelectric power it is severely limited by either the few natural locations for easy extraction or the high cost of deep wells to reach it anywhere.

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Answer 2

Emilia Alcaraz

Geothermal energy is sustainable because it relies on heat generated from the Earth's core, which is continuously replenished by natural processes such as radioactive decay and heat flow from the Earth's interior. This means that geothermal energy can be extracted without depleting finite resources, making it a renewable and environmentally friendly source of power. Additionally, geothermal power plants have a small land footprint and produce minimal greenhouse gas emissions, further contributing to their sustainability.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.