<u>Answer</u>: c. a and b
Trees play vital roles in the production of oxygen as well as the fixation of carbon from 
. As trees use nitrogen, phosphorus and water as nutrients for growth, their diminishing numbers would change the balance between these three elements significantly.
Thus, during rains, the water level will rise much faster and higher in the absence of trees. These could possibly lead to increasing cases of devastating landslides.
<span>there is more than one path for the electrons to take.</span>
Answer:
major crops in permanent agriculture includes trees and shrubs.these are not totation crops,harvesting for more then five years.for example apple,citrus fruits,blueberry etc.
these crops need afuquate temperature and good soil for cutivation.
Answer:
The answer should be B
Explanation:
The nucleus has the genetic code to make protein.
Answer:
pharynx, larynx, trachea, bronchi and lungs
The respiratory system is what allows us to breathe and exchange carbon dioxide for oxygen. The human respiratory system is a series of organs responsible for taking in oxygen and expelling carbon dioxide. ... The lungs work with the circulatory system to pump oxygen-rich blood to all cells in the body.
The respiratory system does not work alone in transporting oxygen through the body. The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.
Explanation:
