Most of Earth's dry air is made up of

A. carbon dioxide and oxygen.

B. nitrogen and argon.

C. nitrogen and oxygen.

D. oxygen and argon.

The Indus Valley civilization exist in what is now Pakistan for about 1,000 years. True or false

Did montezuma welcome cortes because he believed cortes was a god.

Malachite specimen A cooled more rapidly than malachite specimen B when it formed. What can you predict about the crystals in specimen A? A. They will be smaller than the crystals in specimen B B.

If major polluters overshoot their maximum allowed levels of emissions, they can purchase pollution rights from other companies. a. True b. False

What is the biggest country in South America?

Which is the most accurate method of showing the entire surface of the earth? A. Mercator projection B. globe C. global gores D. Robinson projection

A geologist is making repeated measurements) in grams) on the massof a rock. It is not known whether the measurements are a randomsample from an approximately normal population.

Which term refers to South Asia's unique geographical position in Asia

According to Alonso, Mexican nationalist ideology completely ignores the contributions of which group that was part of colonial Mexican society? A) European whitesB) African slavesC) CreolesD) conquered indigenous peoples

Planets travel at a constant rate around the Sun. a. True b. False