Why Is the Claim of the Discovery of Microfossils Controversial

question 31

Multiple Choice

Why is the claim of the discovery of microfossils controversial?

• A) they are found in rocks from the Hadean Eon
• B) it is not clear whether they are of biological or non-biological origin
• C) the rocks they are found in are probably contaminated by terrestrial bacteria
• D) they are too small to be of biological origin

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Definitions:

Taft-Hartley Act

An American federal statute from 1947 designed to curtail the actions and influence of labor unions.

AFL-CIO

The American Federation of Labor and Congress of Industrial Organizations, a federation of labor unions in the United States, representing the collective interests of workers.

Strikes

Work stoppages initiated by employees as a form of protest, typically in an effort to gain better pay or working conditions.

Unionization Rate

The percentage of the workforce that is a member of a union, indicating the level of union presence within the labor market.