The United States Has About ________ Percent of the World's

question 110

Multiple Choice

The United States has about ________ percent of the world's population and is responsible for ________ percent of its greenhouse gas emissions.

• A)1; 5
• B)4; 14
• C)10; 45
• D)20; 60

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Definitions:

Beta Particle

A beta particle is a high-energy, high-speed electron or positron emitted by certain types of radioactive nuclei during radioactive decay.

Cytotoxic

Refers to substances or cells that are toxic or destructive to living cells.

Gamma Emitter Isotopes

Isotopes that decay by emitting gamma rays, a form of electromagnetic radiation, from their nucleus.