Which of the following is responsible for about half of the heat generated by Earth's core?

A. Frictional heating

B. Residual heat from Earth's formation

C. Radioactive decay of elements

D. Sunlight

The thermohaline circulation is likely to slow down with global warming. how might a slower thermohaline circulation affect earths climate?

These nations have political divisions called provinces

The Richter scale is a log scale. Each magnitude higher earthquake shakes ten times more than the one below it. So a M3 shakes ten times as much as a M2 earthquake. A M4 shakes 100 times as much as a M2. And a M5 shakes 1000 times as much as a M2.

Imagine that you live in a rural village in Southeast Asia and that you are considering moving to the country's capital city. In the spaces below list the push and pull factors that may contribute to your decision.

Where does surface water collect if it does not flow to the ocean? 1. glaciers 2. wetlands 3. subduction zones 4. alluvial fans

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?