Answer:
13.7 billion years old good luck
Because the trees give oxygen and if there's no water the trees will die and be left with low amounts of oxygen
Natural selection will occur when the population reaches the carrying capacity
The vitamin which is synthesized by microbes in the intestines and which helps to maintain bone health is VITAMIN D.
Vitamin D plays a very critical role in the body use of calcium and that of phosphorus. Vitamin D increases the amount of calcium that is absorbed from the intestine thus helping in the formation and maintenance of bone.
The answer is marcotting. This is for trees, shrubs and
semi-woody plants. The two cuts are then connected by a straight cut and the
bark is pried loose and removed. This involves pressing of a sharp knife
against the bark preferably as close as possible below a node, moving the knife
in circular motion around the stem.