Which of the Following Statements Is(are)true About Global Warming

question 49

Multiple Choice

Which of the following statements is(are) true about global warming?

• A) The earth has already warmed by between 0.7 and 1.1 degrees Celsius over the past century.
• B) Burning fossil fuels is the leading contributor of global warming.
• C) The amount of greenhouse gases in the atmosphere has increased by as much as 40 percent since the Industrial Revolution.
• D) All of the above.

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Definitions:

Hydrogen Peroxide

A chemical compound with the formula H2O2, used as an oxidizer, bleaching agent, and antiseptic.

Catalysts

Materials that increase the rate of a chemical reaction without being consumed in the process.

Reaction Yield

The amount of product formed in a chemical reaction, often expressed as a percentage of the theoretical maximum amount that could be produced.

Speed Up

To increase the rate or velocity of an object or a process.