Spiral galaxies often appear bluish due to an abundance of

a. old stars.

c. young stars.

b. black holes.

d. white dwarfs.

Which is a problem that prevents africa from being able to fully utilize its resources

1. Which should you do in the event of a catastrophic hurricane? A. Board up all windows and doors. B. Hide in a basement. C. Take shelter on the second floor. D. Drive out of town on a main thoroughfare. 2.

What do most scientists now think causes the planet's crustal plates to move thus causing earthquakes and volcanoes to occur?

Should we get rid of the penny? Explain three reasons why to remove it.

How did geography affect the fighting in the western theater of the Civil War? The land was very dry, and much of the fighting was in the desert. Both sides fought to control the higher ground of the region's mountain ranges.

Write the number 100,000 more than 123,045,067

How long would it take to circumnavigate the globe 1,273 times

List in order of relative size, from smallest to largest. Sun Jupiter Milky Way Universe Our Solar System

The four main systems of the Earth are

What is a famous part of the savanna in Kenya and Tanzania called?