Answer:
legvold and others said the fall of the Berlin wall marked the end of the cold war.
Highwall mining is often used when excavating an open-pit mine becomes too expensive. There are many advantages over underground mining, including the fact that it is both more cost-effective and involves less lead time.
Answer:
1) In the nineteenth century, Scandinavian and other Western European immigrants settled in this region. 2) The Ancestral Pueblo people lived in the southwestern region of the modern United States; they constructed elaborate buildings and began the American farming tradition
Answer:
They´re a source of invaluable information. The study of these cosmic materials allows us to gain knowledge about the history of the solar system, about processes and primary conditions in the universe. We can learn the age and the composition of the planetary building blocks, the temperatures reached at the surface and interiors of asteroids, what kind of effect do materials experience due to impacts in the past.
Explanation:
