Global satellite imagery of land on Earth over the past 20 years reveals

A) a net improvement of the quality and area of cropland.
B) a net decline in the overall quality of cropland.
C) the loss of more than 5% of land to the construction of new lakes and dams for electrical generation.
D) a loss of more than 7% of land mass due to rising ocean levels.


B

Environmental & Atmospheric Sciences

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Most weather occurs in this temperature-characterized atmospheric layer, the ________

Fill in the blank(s) with the appropriate word(s).

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The Mercalli scale uses both subjective and objective measurements of intensity

a. True b. False

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There are places on the deepest parts of the ocean where no light penetrates that support colonies of life

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Which of the following is not something we can learn by determining isotopic ages?

A) The age of a volcanic eruption B) The age when a rock is uplifted toward the surface C) The age of material from which clasts in a sedimentary rock were derived D) The cooling history by using different types of isotopic ages E) We can determine all of these.

Environmental & Atmospheric Sciences