Choose the Best Answer

question 4

Multiple Choice

Choose the best answer. A person who has no job but is looking for one is:

• A) unemployed.
• B) a discouraged worker.
• C) part of the labor force.
• D) unemployed and part of the labor force.

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Definitions:

Isotope

Variants of a particular chemical element that differ in neutron number, and therefore in mass, but share the same chemical properties.

Atoms Decay

A natural process by which the nucleus of an unstable atom loses energy by emitting radiation, leading to the transformation of the atom into a different element or isotope.

Microbial World

The vast, diverse domain of microorganisms, including bacteria, archaea, viruses, and fungi, which play crucial roles in all ecosystems.

Early Earth

The period in Earth's history just after its formation, characterized by extreme conditions and the gradual development of the planet's atmosphere and oceans.