The volume of water that moves past a point on a river in a given time is called the river’s a. flow. b. slope. c. load. d. turbulence.

The correct answer is - a. flow.

The volume of the water that is moving past a certain point of the river, in a precisely given time-frame is the river-flow, or also referred to as stream-flow.

The river-flow is not the same at all points of the rivers, or in all parts of the year. The lower part of the river has a bigger flow because the river is bigger, thus has more water, and vice versa, the upper part is smaller, has smaller amount of water, thus has smaller flow. Also, the different periods of the year determine the river-flow. When there's bigger amount of rainfall, or snow melting, the river gets more water, and the flow is bigger, but if there's a drought for a prolonged period of time, the flow is getting smaller.

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.