In 1986 several robotic spacecrafts were sent into space to study the halleys comet. which of these statements best explains why humans should continue to send robotic spacecrafts into space?
a) they absorb harmful radiations in space
b) they change weather conditions on earth
c) they discard some myths about objects in space
d) they destroy meteors and comets which might strike earth
Answers: 1
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In 1986 several robotic spacecrafts were sent into space to study the halleys comet. which of these...
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