Earths climate Is changing by global temperature rise, Warming oceans, shrinking Ice sheets, glacial retreat, decrease snow cover, sea level rise, declining Arctic sea ice, extreme events, and ocean acidification
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D is your answer I believe
The effector in a negative feedback system acts to counter any changes made to a particular property. If it were positive feedback, it would amplify the change and make it more extreme
Answer:Astronomers use a number of telescopes sensitive to different parts of the electromagnetic radiations to study objects in space
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