What is petroleum?
a) Gas hydrates of methane and carbon dioxide
b) Minerals deposited from biogenous secretions
c) Oil and natural gas formed from remains of ancient microorganisms buried within marine sediments
d) A combination of siliceous and calcium carbonate oozes that decompose
C
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Which nation, twice the size of Texas, has a population of only 3.1 million people?
A) Kazakhstan B) Mongolia C) Afghanistan D) Uzbekistan E) Kyrgyzstan
________ cells generate electricity directly from the sun's energy
Fill in the blank(s) with correct word
How does the GDP (Gross Domestic Product) differ from the GPI (Genuine Progress Indicator)?
What will be an ideal response?
What is the air flow called from the tropics to the Equator that affects climate patterns in Latin America?
A) rain shadow B) trade winds C) westerlies D) El Niño E) La Niña