Why is Spanish the official language of 9 of the 13 nations of south america

A rock is going to be analyzed for its radioactive isotope contents, X and Y. X is the parent and Y is the daughter isotope. Assume that the half-life of the radioactive isotopes is 5,730 years.

What is an archipelago

What is produced as the result of unequal warming of the weather surface?

The climate of Western Europe is a marine climate and most of its abundant moisture comes from the Pacific Ocean True or False

What does the winter monsoon bring to Japan and the Korean Peninsula? A) a dry cold winds but no snow B) heavy snows & a cold weather C) mild, rainy weather D) dry warm weather

Which of the following bodies of water lies between Australia and papua New guinea. A. The southern ocean B. The coral sea C. The Tasman sea D. The Torres strait

What hurricane proved to be devastating to the city of new orleans.?

Why was John Paul Jones's victory important in the war?

When we speak of "characteristic" we're referring to

What observation about this mid-ocean ridge diagram below was used to support Wegener's hypothesis of continental drift? Magma is very close to the surface at the rift. Sediments become thicker with increasing distance from the rift.