Answer:
<em>I</em><em> </em><em>t</em><em>h</em><em>i</em><em>n</em><em>k</em><em> </em><em>i</em><em>t</em><em>s</em><em> </em><em>A</em><em>.</em>
Explanation:
hope it works out !!
<u>one thousand millionth of a metre</u>
c
C
Because it shows how much humans have impacted the climate and shows how much of a cooling effect.
its B
