Answer:
Deforestation can affect the water cycle and the carbon cycle. It will decrease the amount of transpiration. It will also increase the amount of carbon dioxide in the atmosphere by releasing the carbon dioxide as trees are burned and by decreasing photosynthesis.
Answer:
No they surround the atom
The least reactive element in the third period is argon.
Since the other answer got deleted, i'll just answer it for you.
a sinoatrial node is the main pacemaker that begins each heartbeat located in the junctions of superior vena cava and the right atrium. It signals from the node that spread through the atria and determines the heart rates.
