the hardness of a unknown mineral can be found by

A) subjecting it to a strength test

B) calculating its density

C) comparing it to the other known samples using a scratch test

D) grinding it on a streak plate

The united states purchased alaska from russia because a of the large number of oil fields b of the aleutian island c of the gold fields in the yukon d of the fur trading industry

What rocks are examples of chemical sedimentary rocks

Do approximately 33000 people died annually or weekly on the roads of the United

The mediterranean sea touches what three continents

In which part of maine should you live if you want the least possible risk of damage from an earthquake? explain?

Which of these is a renewable resource? a. coal b. cotton c. copper d. petroleum

What are the classifications for the six major land areas on earth?

Which of the following European countries is one of the top three leading exporters in the world? A) United Kingdom B) Germany C) Spain D) France

Fault lines are: the crust of the lithosphere that has fractured along plate boundaries and ridges the crust of the athenosphere that has fractured along plate boundaries and ridges the crust of the biosphere that has fractured along plate

Which US region historically has been dependent on the Entertainment, software and aerospace industries as a part of its economy?