I believe it is D. More African elephants today naturally lack tusks compared to the elephant populations 100 years ago, because big game hunters sought elephants for ivory.
The answer should be altitude
Number of neutrons in the nucleus
<span>Chemical weathering occurs more rapidly in a hot and wet climate. Chemical processes like chemical weathering happens rapidly during high temperature, specifically during warm but damp climates. So, on the first question, the answer is letter A. On the second question, the statement that best describes rill erosion is letter D. Rill erosion is the removal of soil by a running water that cuts and forms small channels into a slope or streamlets.</span>