Explanation:
The flow of the river is dependent upon the position along the stream in terms of the gradient. Near the top of a high gradient, the flow will be less than that near the bottom. Likewise, the steeper the river's gradient, the faster the flow of water (due to the pull of water down the gradient by gravity).
The answer is D. Increasing government funding of research
Particles from the top of the cloud get heavier and go to the bottom of the cloud also when positive and negative charges grow large enough
Is any member of a large class of gaseous, liquid, or solid chemical compounds<span>whose molecules contain carbon</span>