Scientists estimate there are approximately 100,000 galaxies in the universe.

True or False

Which rocks are composed primarily of quartz, feldspar, and clay minerals?

What are the two ways that rocks are broken down into smaller pieces? A. abrasion and erosion B. chemical weathering and dissolving C. physical weathering and precipitation D. chemical weathering and physical weathering

How has ice cover near the North Pole changed in the last few decades

The lyrics to American Blues music are usually:

For Europeans, what was the disadvantage of using so many different currencies in such a small area?

Which revelation resulted from the observation of the spectrum of different galaxies? A. there were more galaxies whose spectrum was blueshifted B. there were no galaxies whose spectrum was redshifted C.

Why are people are able to live in deserts, mountains, and tundras?

What is the essential feature of data stored by geographical information systems? 1. The data relates to land use. 2. The data is linked to locations. 3. The data relates to geographical formations. 4. The data is linked to a specific time.

How temperature and density change from the crust to the core

Which plain is completely located in Canada? 1 Great Plain 2 Baffin Island 3 Canadian Shield 4 Coastal Plains