Because P and S waves travel faster through the earths mantle than through earths crust, scientists know that the mantle is and than the crust.

A: liquid; denser

B: solid; less dense

C: liquid; less dense

D: solid; denser

Directions: Contact your local power company to: •determine what the primary source of power used to heat homes in your area is. •determine if alternative energy sources are being used in your area and if so which ones.

One characteristic of mass wasting processes is that they Select one: a. move materials very slowly. b. move materials relatively short distances compared to streams. c. only operate on steep slopes. d.

The land in Mexico City is sinking. What is the primary cause of this problem? A. deforestation caused by cutting down trees B. too much water being taken from underground aquifers C. too many offices and towers being built in the city D.

Select only the islands and island groups that belong to Micronesia. a. Hawaii b. Wake Island c. Papua New Guinea d. Marshall Islands e. Palau Northern f. Mariana Islands g. Guam h. Solomon Islands

What suggests the government's effort to replace timber will be successful? Taiwan's topography the size of the island the average rainfall Taiwan's successful fishing industry'

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?

Which World culture region is broken up into the most subregions