The most common landscape forms in the dry western u. s. are the basin and range and the

Mesa and Scarp.

These are the most common landscape forms within the dry western US.

Hope this helps!

    Escarpment

Explanation:

    Escarpment is a sudden elevation of the ground, greater than 45° characterized by the formation of a cliff or a Steep slope. The surface of this steep slope it's called the "escarpment track". The escarpments are formed by erosion of sedimentary rocks or by the vertical movement of the earth's crust along of a geological fault

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.

a. i. only is correct.