Which of the following is a variable gas in our atmosphere

a.

Argon

b.

Oxygen

c.

Nitrogen

d.

Water vapor

e.

All of the above are correct

A country's GDP is the total dollar value of all final goods and services produced within a country's borders in a given year. It also determines how countries are classified. Which of the following is not a classification based on GDP?

Improving the movement of people, goods, and ideas is integral to improving the economic situation throughout Southeast Asia. True or False.

Where do most Africans live

In the Middle East, conflicts have occurred over resources mainly because ___ A. people have religious ties to certain resources B. there is not equal access to resources across the region C.

Climatology is a subspecialty of A. meteorology. B. environmental science. C. oceanography. D. marine 8.

How is a map an example of a model

How long would it take to drive from Tulsa, Oklahoma to Dallas, Texas?

Which of the following peninsulas are in southwest asia

How do heat and landforms affect our weather?

Which conclusion explains Africa's economic and government problems after independence