Evidence suggests that early humans living in siberia crossed the into alaska thousands of years ago. a. siberian earth bridge b. bering land bridge c. pacific ocean d. alaskan gulf

What is the northern most national park in the world

If we represent the solar system on a scale that allows us to walk from the sun to pluto in a few minutes, then a) the planets are microscopic and the stars are millions of miles away. b) the planets are the size of basketballs and the nearest stars are a few miles away. c) the planets are marble size or smaller and the nearest stars are thousands of miles away.

Which of the following types of nonrenewable fuel sources requires the storage of radioactive waste? a. coal b. nuclear c. solar d. oil