18d) Wed Questions - Risks of Space Travel

Which of the following is a major health risk for astronauts due to exposure to cosmic rays in outer space?

• Radiation sickness

• Dehydration

• Frostbite

• Malaria

What is the term for the condition experienced by astronauts when their bones lose density in microgravity?

• Osteoporosis

• Scurvy

• Anemia

• Astigmatism

Which of the following is NOT a danger of traveling in outer space?

• Microgravity effects

• Space debris collisions

• High oxygen levels

• Radiation exposure

What can happen to the human body’s muscles during extended periods in microgravity?

• Muscle atrophy

• Muscle gain

• Muscle freezing

• Muscle swelling

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Which of the following is a psychological danger faced by astronauts during long space missions?

• Isolation and confinement

• Sunburn

• Allergies

• Jet lag

What is the main source of radiation that poses a threat to astronauts in space?

• Cosmic rays

• Ultraviolet light from the Moon

• Infrared radiation from Mars

• X-rays from Earth

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Which of the following is a danger caused by the lack of atmospheric pressure in outer space?

• Boiling of body fluids

• Increased oxygen absorption

• Enhanced taste sensation

• Improved vision

What is the main reason astronauts need to exercise regularly while in space?

• To prevent muscle and bone loss

• To improve their vision

• To increase their appetite

• To avoid sunburn

Which of the following best explains why astronauts are at risk of dehydration in space?

• Increased fluid loss through respiration

• Lack of water supply

• Excessive sweating

• High humidity

Why is it important for spacecraft to have shielding against radiation?

• To protect astronauts from harmful cosmic rays and solar particles

• To keep the spacecraft warm

• To prevent loss of air

• To reduce noise

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