In addition to comets, water for Earth's early oceans might have come from

A. rain.

B. rivers.

C. cyanobacteria.

D. volcanic eruptions.

Where are atolls usually located around? around submerged, extinct volcanoes around rich iron deposits around larger continents around population centers?

A graded bed deposited in a matter of hours is called a turbidite bed. True or False?

If you were to make a trip somewhere in the world, where would you find the richest historical evidences of early travel? a. mediterranean area b. india c. middle east d. north america e. south america

Why doesn't the international date line isn't in a straight line

The population in your state has nearly doubled in the last fifty years. People now live in places that were once farms or forests. Land has been cleared to make room for houses and stores.

Which of the following is a false statement regarding the Xinjiang province? A. It is rich in minerals and resources. B. It has a low population of Uyghur. C. Its location is strategically important. D. It is three times the size of France.

This is a geologic event that occurs when tectonic plates are displaced violently.

Which of the following items was used as a meat tenderizer and also eaten? a. Cacao beans b. Pineapple c. Papaya d. Guava

Terraces are used in agriculture two

The countries of Guyana, suriname, and French Guiana all share which of the following