Question

3. We need to monitor junk in space because ?​

Answer 1

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Space junk can be a hazard to active satellites and spacecraft. It has been theorized that Earth orbit could even become impassable if the risk of collision grows too high.

Answer 2

Explanation:

Hundreds of thousands of man-made objects are zipping around our planet—from dead satellites to errant nuts and bolts, putting our working satellites at risk.