What are the two energy sources for the earth system?

What will be an ideal response?


the Sun and the earth's interior

Environmental & Atmospheric Sciences

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What percentage of useful energy in the United States is either unavoidably or unnecessarily wasted?

a. 43% b. 84% c. 35% d. 41% e. Energy in the United States is not wasted.

Environmental & Atmospheric Sciences

Which of the following is considered the world's largest oil spill?

A) Blowout of the Ixtoc #1 oil-drilling platform in 1979. B) Explosion of the Deepwater Horizon oil-drilling platform in 2010. C) Intentional dumping by the Iraqi army in 1991. D) Rupturing of the Exxon Valdez supertanker in 1989. E) Spillage from natural seeps and regular human activities every year.

Environmental & Atmospheric Sciences

Beaches can be made of volcanic rock

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

If you are standing at 28 degrees north latitude, you will experience a high tide when the Moon is directly overhead. When will low tide occur?

A) Six lunar hours later B) Six solar hours later C) Twelve lunar hours later D) Twelve solar hours later E) Twenty-four lunar hours later

Environmental & Atmospheric Sciences