SOLAR SYSTEM

UNIVERSE

SPACE EXPLORATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is one reason astronauts working outside the International Space Station need to wear space suits? The space suits-
A
make it easier to identify the astronauts.
B
help the astronauts float freely in space.
C
have communication devices in the helmet.
D
provide essential food and water for survival.
Explanation: 

Detailed explanation-1: -Space is extremely cold and filled with dangerous radiation. Without protection, an astronaut would quickly die in space. Spacesuits are specially designed to protect astronauts from the cold, radiation and low pressure in space. They also provide air to breathe.

Detailed explanation-2: -The suits protect astronauts from getting too hot or cold. Spacesuits also give astronauts oxygen to breathe while they are working in space. The suits hold water to drink.

Detailed explanation-3: -The suits provide the proper pressure for the body and supply astronauts with water to drink and oxygen to breathe.

Detailed explanation-4: -Also because of the lack of atmosphere, the astronauts would be subjected to extreme temperatures in outer space. Hence space suits are designed to protect astronauts against extreme heat and cold. Why do astronauts wear special protective suits when they go to the moon?

Detailed explanation-5: -The atmospheric pressure on Mars varies with elevation and seasons, but there is not enough pressure to sustain life without a pressure suit.

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