The Thin Envelope of Life That Surrounds the Earth's Surface

question 20

Multiple Choice

The thin envelope of life that surrounds the earth's surface is called the

• A)atmosphere.
• B)biosphere.
• C)lithosphere.
• D)hydrosphere.
• E)ecosystem.

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Definitions:

Phenylketones

Organic compounds containing a phenyl group attached to a ketone group, often discussed in the context of phenylketonuria, a metabolic disorder.

Tachypnea

An abnormally high rate of breathing, which may be indicative of respiratory distress or other health issues.

NICU

A specialized hospital unit for the care of premature and critically ill newborns, standing for Neonatal Intensive Care Unit.