Explain why an ecological pyramid is smaller at the top than at the bottom.

The four major components of the earth's crust are: sedimentary rock hydrosphere asthenosphere solid inner core basalt ocean floor granite foundation

The North European Plain runs through these countries. (Select All that Apply) Albania Belarus Estonia Poland Romania Russia

What physical processes have interacted over time to shape the UK's distinctive landscapes?

Who moved the capital of the Roman Empire to Byzantium (constantinople) ?

Terrorism has become a global challenge, so the united states has begun working with other nations to cut funding to terrorist cells. true or false

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?