What Caused the Dramatic Decline in Guam's Native Bird Species

question 10

Multiple Choice

What caused the dramatic decline in Guam's native bird species?

• A) climatic change in the region
• B) the elimination by humans of its food supply
• C) the thinning of their eggshells and the subsequent death of their young as a result of heavy DDT use on the island in the 1970s
• D) radiation poisoning caused by nuclear tests of the United States and France
• E) the accidental introduction of the non-native brown tree snake

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Definitions:

Required Reserve Ratio

The fraction of deposits that banks must hold in reserve, either in their vaults or with the central bank, to ensure bank liquidity.

Federal Funds Market

A financial market that allows banks to borrow or lend excess reserves to one another, usually on an overnight basis.

Liquidity

The simplicity of transforming an asset into cash without impacting its market value.

Profitability

A measure of the efficiency and financial success of a company, typically evaluated through ratios such as net profit margin or return on investment.