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When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force

What approach is required to balance the objectives of sustainable development? balancing the objectives of sustainable development requires a(n) .

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?