<span>I found these studies about d</span>eforestation in 2009<span>, 2/3 of the world forests were in 3 top countries: 1) </span>Russia<span>, 2) </span>Brazil<span>, 3) </span>Canada

The Correct choice is C
<u>Demography</u> is the study of human populations and how they grow or decline.
Cumulus cloud has the cauliflower structure
Most likely due to its colonization by Europeans.