Which layer of the earth is composed of iron and nickel, and has two main parts called the outer and the inner ?
a. the mantle
c. the crust
b. the core
d. the lithosphere

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 movement developed in the early 1900s and encouraged the nationalist spirit of africans throughout the world? a. african nationalist b. tribalism c. pan-africanism d. african union

The poles appear to be slightly flattened in a robinson projection. question 1 options: true false