Many americans in the late 19th century assumed some races, like anglo-saxons, were superior and other races, like indians, were inferior.(a) true(b) false

True

Explanation:

True, this happened to many different races like: Mexicans, and African Americans just to name a few.

True

Explanation:

It would be true because the Americans thought that they were the superior. And the races like Mexican and African Americans.

studies show tha in 7.5 billion years from now, the expanding sun will engulf, and destroy, the earth.

the answer here would be