It is a true fact that raw sewage can cause eutrophication in a body of water. The correct option among all the options that are given in the question is the first option or option "a". The addition of excess amount of organic matter like manures, sewage can cause eutrophication. I hope the answer helped you.
Let the no of months be x
the equation will be-
42+x=3(8+x)
42+x=24+3x
2x=18
x=9
after 9 months Tom will be thrice his dog's age
1) <span>No, because shearing causes strike-slip faults or normal faults are caused by tension.
2) </span><span>Diagram A shows a section of rock that contains three different layers. All layers are parallel and are equal in thickness. There are no forces being exerted on the rock layers.
3) </span>Compression: stresses are directed inward - produces thrust faults, reverse faults, or folding; Tension: stresses directed outward
What do you mean can u explain more