Answer: tobacco has been use by the native American Indian nations for many centuries as a medicine for spiritual and cultural importance. It is use as an offering to their creator,place or being. Tobacco contains a addictive stimulate known as nicotine. Nicotine is used in our present day pharmaceutical drugs. Study shows that nicotine
improve memory and concentration. Nicotine increases blood pressure and heart rate,, nicotine replacement therapy is use to help people to stop smoking, tobacco mixed with lime and chalk are use as tooth paste to whitening the teeth by Native American.
The answer is B.
neutral: OH- = H+
acid: H+ > OH-
base OH- > H+
i think the answer is because the cell membrane acts as a protecter for cells. It also moves liquds and since it does move liquids it wouldn't desolve from it.
This is called active transport or fully permeable
Answer: What is the relationship between rock cycle and metamorphism?
When a rock is exposed to extreme heat and pressure within the Earth but does not melt, the rock becomes metamorphosed. Metamorphism may change the mineral composition and the texture of the rock.
Explanation:
