Because Our Planet's Climate Is Always Changing, the Key Question

question 22

Multiple Choice

Because our planet's climate is always changing, the key question becomes: How much of global warming is caused by human activities versus natural climate variability? On this issue, most scientists agree that the causes are mainly

• A) indigenized.
• B) moral.
• C) anthropogenic.
• D) ecological.
• E) evolutionary.

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Definitions:

Illegal Fruit Pickers

Individuals who are employed in agricultural harvesting without legal authorization or documentation.

Domestic-born Truck Drivers

Truck drivers who are born within the country they are working, as opposed to those who have immigrated.

Backflows

The reverse movement of water, mixtures, or substances into the distribution pipes of the potable supply of water from any source or sources.

International Migration

The movement of people across international borders with the intention of settling, temporarily or permanently, in a new country.