The tissue layers of blood vessels from outer layer to inner layer are:

The outermost layer is called the tunica adventitia.

The muscular middle layer is called the tunica media.  

The innermost layer is called the tunica intima.

Explanation:

tunica intima is the inner most tissue, tunica externa is he outermost layer of a blood vessel

Explanation:

the sun d the answer is sun

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.