Rocks are aggregates of one or more minerals.
a. true
b. false
true
Environmental & Atmospheric Sciences
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Water that is used to produce consumable items but not consumed directly is called ____________________.
Fill in the blank(s) with the appropriate word(s).
Environmental & Atmospheric Sciences
The youth cohort
A) are not fully active in the labor force. B) are between the ages of 16 and 30. C) have little effect on the dependency ratio. D) refers to the Net Generation.
Environmental & Atmospheric Sciences
What chemical change occurs when a wax candle burns?
A. The wax within the wick is heated to about 600°C. B. The molten wax is pulled upward through the wick. C. The wax near the flame melts. D. The heated wax molecules combine with oxygen molecules.
Environmental & Atmospheric Sciences
If baleen whales eat krill that eat diatoms, krill represents the ________ trophic level.
A. first B. second C. third D. fourth E. fifth
Environmental & Atmospheric Sciences