What is a volcanic bomb?

A. a very violent volcanic explosion

B. a particle larger than 64 mm in size ejected as glowing lava

C. a pocket of gas that is released suddenly

D. a tiny particle of ejected rock less than 64 mm in size

Which statement about deep currents is true? They move warm water along the bottom of the ocean from the Pacific Ocean to the They move warm water along the bottom of the ocean from the Atlantic Ocean to the Pacific Ocean.

Information about the composition of the earths interior has come form which of he following sources A drilling B fossils C meteorites D maps

Which of the following resources is china known for? mohair and hazelnut rice and coal or oil and rubber

Which country or countries allow their citizens to vote for president

One factor that could account. For a rise in a water table A. More clouds b. less porous soil c. more wind d. more precipitation

How high does the earth's atmosphere extend? A. 100 m B. 1,000 m C. 10 km D. 100km

How to grow plants in space?

Based on this map of oil imports, which nation imported the greatest number of oil barrels each day in the years before 2006? A. China B. Australia C. Canada D. the United States

How far will a P-wave travel in 9 min 20 sec?

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.