Explain how the runoff waters from farm to land and golf courses might be dangerous to organisms living in ponds, rivers, or streams.

answer: a) a compound microscope has a greater magnification ability than a simple microscope.

explanation:

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

the correct option is option d