Which of the following is not an agent of chemical weathering?

a. lichens

b. acid rain

c. salt water

d. moving water

Granite is one the main rocks that make up continental crust, which is

How long have accurate measurements of earth's climate been recorded?

In what state was the first topographic map (relief map using contour lines) issued in the United States?

Suki wants to build a 60 ft. Long rectangular sheep pen in back of her barn. If she bought 150 feet of fencing and used her barn wall as one side of the pen equaling the width, what would be the area of the sheep pen?

A nurse was to give 1.32 unit dosage of a prescribed drug. The total remaining units of the drug were 53.12. The nurse has 38 patients. will there be enough dosages for all her patients?

What are two radioactive isotopes that are useful for dating old rocks

Read the article titled "the votes are in" using four or more sentences, explain why the 2005 elections in Afghanistan were so important. Did many people participate? Why or why not?

Which East Asian country is a major competitor for US traders? A. Japan B. Taiwan C. South Korea D. China

Which resources are nonrenewable resources? Choose ALL answers that are correct. Water Natural Gas Solar Energy Fossil Fuels

What is it about the geography and the geology of the Galapagos Islands that make them an ideal place to stimulate ideas about evolution in someone like Charles Darwin?