Which of the Following Statements About Deforestation Is NOT True

question 40

Multiple Choice

Which of the following statements about deforestation is NOT true?

• A) About 90 percent of the world's forest loss is occurring in tropical forests.
• B) Tropical forests make up only 6 percent of the world's land but are home to 50 to 90 percent of all terrestrial species.
• C) Reforestation in North America in the years since 1920 has had no measureable effect on the size and health of the continent's forests.
• D) At present deforestation rates, 50 percent of tropical species could be extinct by 2042.

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Definitions:

Probability

A measure quantifying the likelihood that a specific event will occur, typically expressed as a number between 0 and 1.

Uniform Density

A measure indicating that mass is evenly distributed throughout a substance or object, so each unit volume has identical mass.

Probability

Probability refers to the measure of the likelihood that an event will occur, quantified as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

Poisson Approximation

A statistical technique used to estimate the probability of a given number of events happening in a fixed interval of time or space when these events occur with a known constant mean rate and independently of the time since the last event.