What is the hydrosphere mostly made of

What river forms part of the border between two northwestern states and flows into the pacific ocean

What is weather and wind

What is the worlds second smallest ocean?

Since much of our knowledge of Earth's interior is inferred from the behavior of seismic waves and not actual samples, what are some of the assumptions that are made in order for our models to be correct?

How long did the mongol empires control land in asia and europe a) 162 b) 60 c) 460 d) 200

What statement about rainforests is false?

How many offers were made ro the palestinians to create their own átate

Which area of rivers and streams will most likely contain the most sediment? a. the source b. the mouth c. the middle portion d. none of the above

Three economic principles of natural resource management are 1) Opportunity Cost; when you make a choice, you lost the opportunity to choose other things 2) Time preference; how fast you can wait for a return on your investment 3) Discount rate;

Acid rain is a serious problem in China. true or false?