What type of power generation can cause air pollution?

wind

coal

geothermal

solar

What do comets and asteroids have in common? Select two options. They are made of ice. They are orbiting the Sun. They are made of metal debris. They are small compared to the planets. They are at the center of the solar system.

Why are a variety of instruments needed to measure change in the climate system? a. A different type of instrument is needed for each different climate. b. The climate system involves a number of different factors that are measured differently. c.

Explorers from the European country were the first to explore the west coast of Africa and eventually make the way past the cape of good hope into the Indian Ocean?

When the continents separated, some of the same species ended up on different continents this was due from a. geologic time c. plate tectonics b. evolution d. natural selection

What are four examples of landforms and why?

Which Sea is a major body of water located west of the Middle East. A. Mediterranean B. Red C. Black D. Dead

1. Lake Huron is __ of Lake Michigan. a. South b. East c. West

How long does Earth take to travel around the sun?

Select the materials of which atmosphere is composed

Choose an interesting spot or area on the Earth and tell its relative location using two different methods.