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Spacecraft must have shields to protect the from

Friction caused moving through the atmosphere

Heat builds up generated by solar power

Collision with other objects like comets

User Graceanne
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2 Answers

6 votes

Answer:

the answer is friction hope it helps

Step-by-step explanation:

User XikiryoX
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Friction because when reentering the atmosphere the friction builds up causing so much heat that the spacecraft would burn up without the heat shields.
User Melihovv
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