Should Earth be considered a "warm" planet or a "cold" planet? Explain your response

What will be an ideal response?


Answer: Earth is most accurately described as a "warm" planet punctuated by multiple relatively brief ice ages. Warm episodes last for hundreds of millions of years to a few billion years, whereas cold episodes last for tens to hundreds of millions of years.

Environmental & Atmospheric Sciences

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The large group of Scandinavians in Minnesota and the Dakotas in early America are known as a(n) ________.

A. majority B. ethnic island C. culture D. ethnic province

Environmental & Atmospheric Sciences

Agricultural runoff consists of a mixture of compounds that serve as nutrients. The two primary nutrients are ________ and ________.

A. nitrogen; sulfur B. nitrogen; phosphorus C. nitrogen; oxygen D. nitrogen; carbon

Environmental & Atmospheric Sciences

What marks the limit of rapid marine erosion?

A) Sea cliffs B) Wave-cut platforms C) Sea caves D) Blowholes

Environmental & Atmospheric Sciences

The Milankovitch cycles cannot entirely explain recent global warming trends because:

A) no data have been found to support their influence on Earth's climate. B) they operate on a very long time scale and cannot address shorter term cycles. C) they were disproved in the 1980s. D) they address cycles in precipitation only.

Environmental & Atmospheric Sciences