Water can gain contaminants as it rolls downhill. Some of these include.

Water contamination is polluting the water with foreign particles such metals and other debris.

Explanation:

Water contamination is water pollution. Water is said to be contaminated some foreign particles or other substances such as metal particles, chemicals, or plastics or dust, stones , pebbles etc. goes into the water or mixes with the water.

Water contamination is harmful to health if water is contaminated with metals such arsenic, sulfur, manganese, iron particles, aluminium, etc. It may prove fatal and cause many other diseases. Drinking contaminated water or using contaminated water causes many diseases including skin diseases.

Water when they roll down the hills carry ways with them decayed leaves and trees, stones, dusts, mica, pebbles, and many more items. This contaminated the water.

a (congress) should be your answer since they make all federal laws in the u.s.

answer: the net deposit amount   (option c)

in order to fill in the deposit slip, michael needs to fill in the amount that he wants to deposit in the bank. without the net deposit amount, he will not be able to deposit the money because it is mandatory for him to mention it, as the bank needs to maintain a record to avoid any inconveniences for the bank and michael in the future.

the bank officer checks and verifies the amount received against the amount written on the deposit slip to process the slip.