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Which statement about coal, petroleum and natural gas is correct?
AThey can be created quickly in the laboratory if dead organic matter is heated
BThey are inexhaustible because new deposits form every year
CTheir formation takes millions of years and the known reserves will last only a few hundred years at current use
DBurning them does not contribute to global warming
Answer & Solution
Correct answer: C. Their formation takes millions of years and the known reserves will last only a few hundred years at current use
Fossil fuels form over millions of years under specific conditions of high temperature, high pressure and absence of air — conditions that cannot be reproduced in a laboratory. Known reserves are limited and current consumption is projected to exhaust them in a few hundred years, which is also why their burning is linked to air pollution and global warming.
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