B- travel across physical boundaries
<u>Answer</u>:
Mineral Resources and Timber resources are the major resources that the Western United States have.
<u>Explanation</u>:
- The western region of America is particularly known for its practically wealthy and humongous supply of an array of mineral resources like oil, gold, copper and coal.
- These minerals are mostly concentrated in the Rocky Mountains, with all the minerals building up over the years.
- Not only, this but the western United States is also the centre of the timber industry of United States of America.
- It outsources most of the wood related resources and products to America, which includes things like lumber, cardboard and paper.
They could be separated by mountains or rivers and could be influenced by neighboring peoples.
Answer:
Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. The cloud collapsed, possibly due to the shockwave of a nearby exploding star, called a supernova. When this dust cloud collapsed, it formed a solar nebula—a spinning, swirling disk of material.
Explanation: