The correct answer is C, phosphate and nitrogen pollution I just had this test and I got 100%.
substance formed by the chemical combination of two or more elements in definite proportions (a thing that is composed of two or more separate elements; a mixture.)
Answer:
d
Explanation:
b/c hydrogen fuel cells are uses car energy.
The brain may send messages directly down nerve cells to the immune system. ... Receptors in muscles provide the brain with information about body position and movement. The brain controls the contraction of skeletal muscle. The nervous system regulates the speed at which food moves through the digestive tract.
<span>This can lead to heart disease. High levels of LDL cholesterol can lead to a buildup in the arteries and veins, leading to atherosclerosis. The blood vessels will thicken and make it difficult for blood to pass through because of the presence of white blood cells and plaque along the cell walls.</span>
