Which statements about human sperm cells are true? choose all that apply:
a. they have half the chromosomes of other body cells
b. they have twice as many chromosomes as other body cells
c. they have 46 chromosomes
d. they have 23 chromosomes

i think that d. wind is the answer.   i missed the question when i answered a. currents.

we would need to see the picture to answer it

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.