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

The type and age of rock found in this mountain range are also found on another continent what might this mean

Land that can be used to grow crops

why might someone want to flee to afghanistan to seek a home in a new country

Earth is a closed system. that means the amount of rocks, metals, carbon, nitrogen, oxygen, and water on earth ___. so it is essential that bio geochemical cycles __ these materials as they move through earths subsystems A: remains constant.

Select ALL of the following that are ways to reduce or mitigate the impact of forecast errors. a. Reduce the lead time over which forecasts are required to reduce the forecast error. b. Build more flexibility into the operations and the supply chain.

What is rain useful for? Why does it rain?

in which glossary would you expect to find a listing for the critical vocabulary words that are highlighted in each section

A chart is a type of graph true false

Which Old World crop introduced by the Spanish most dramatically increased demand for African slaves in the Caribbean? a. Wheat b. Indigo c. Sugar d. Rice

What do stream terraces represent? Put another way, what were stream terraces before they became a terrace?