What are the two main gases found in earth's atmosphere?

a. nitrogen and argon

b. argon and methane

c. carbon dioxide and oxygen

d. oxygen and nitrogen

How did the social structure of New Spain reflect the Spaniards bias against its native inhabitants

Which of the following cities is the leading industrial producer and financial center in South America? Answer La Paz, Bolivia Buenos Aires, Argentina Sao Paolo, Brazil Santiago, Chile.

An astronomer studying a distant cluster of galaxies finds that several of the galaxies are spiral shaped, with a nuclear region of moderate size and moderately wound arms. how should the astronomer classify these galaxies?

Which of the following places border Mexico? Belize Caribbean Sea Greenland Guatemala Guyana Texas

A compound used to test for the presence of ozone in the stratosphere contains 96.2 percent thallium and 3.77 percent oxygen what is its empirical formula?

At what age do kids in Jordan begin school?

For which triangle does the equation 4^2+4^2 = c^2 apply?

Places to which the Rohingyas they were displaced

1. What is the trading route between the Indian Ocean and the Mediterranean Sea? 2. What lies between the Arabian Peninsula and India? 3. What is west of Yemen? 4. What is east of the United Arab Emirates? 5.

What types of areas are created by sinking, dry air at 30 degrees north or south latitude?