Answer: F. Electrons
Explanation: hope it helped .u.
Answer:
An object with a high mass close to the Earth could be sent out into a collision course with the asteroid, knocking it off course. When the asteroid is still far from the Earth, a means of deflecting the asteroid is to directly alter its momentum by colliding a spacecraft with the asteroid.
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Answer:
I think its C I am sorry if I am wrong
Pipes are made of the element Lead so the answer should be d) lead pipe