The correct answer is b. Collision of Indian tectonic plate with Eurasian plate; uplift of the Tibetan Plateau; formation of the Gobbi desert; yearly monsoon wind cycle.
The collision between the two tectonic plates took/is taking tens of millions of years. It is what caused the Tibetan Plateau to form and it's uplift is due to the ongoing collision of the two plates, the Gobbi desert is formed because of the uplift of the land that is caused by the collision of the two plates, and the yearly monsoon cycle is affected by the geography of the Asian land.
<span>St. Lawrence River, the Great Plains, and the Rocky Mountains are major land forms that both Canada and the United States of America share. You could also say the great lakes. Hope I helped. </span>
They use colors to find regions so you can find them easyer.
The Contiguous United States does not include Alaska, Hawaii, or any other territories under the control of the United States. Alaska is unique among the US states as it is part of the North American continent, meaning it is attached via Canada, and so is part of the "Continental United States".
I believe the answer is B