A Balloon Is Filled with Helium at Sea Level, and Then

question 64

Multiple Choice

A balloon is filled with helium at sea level, and then taken into the mountains to an elevation of 7500 feet. Assuming the temperatures are the same, what will happen to the balloon?

• A)The balloon will compress because the lower pressure will increase the speed of the molecules.
• B)Nothing happens to the balloon because pressure has no affect on the behavior of gases.
• C)The balloon expands because the molecules get bigger.
• D)The balloon expands because the molecules move faster.
• E)The balloon will expand because the external pressure in the mountains is lower.

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Definitions:

Thalamus

A vital brain structure that acts as the main relay station for sensory information to the cerebral cortex, excluding smell.

Hypothalamus

A region of the brain responsible for the production of hormones that regulate body temperature, hunger, moods, and the release of hormones from other glands, among other critical functions.

Hypothalamus

A region of the brain below the thalamus, coordinating both the autonomic nervous system and the activity of the pituitary, controlling body temperature, thirst, hunger, and other homeostatic systems.

Biological Needs

Essential requirements for the survival and physiological well-being of living organisms, such as food, water, shelter, and oxygen.