The pahoehoe<span> flow has a comparatively smooth or "ropy" surface. The surface of the </span>aa<span> flow consists of free chunks of very angular pieces of </span>lava<span>. This </span>difference<span> in form reflects flow dynamics. </span>Aa<span> forms when </span>lava<span> flows rapidly.</span>
It rains, water moves and erodes the land and creates valleys and rivers.
Answer:
the brain stem
Explanation:
the structures of our brain stem, in conjunction with our spinal cord (not a part of our brain) is responsible for involuntary action. Not sure if it generate signals, but hey it's better than no answer.
<span>cardiorespiratory endurance and muscular strength</span>
