Mineralized veins containing valuable metals were deposited by:

(A) volcanic ash

(B) erosion

(C) hydrothermal

(D) fluids fast-flowing

(E) liquid lava

Which items are examples of human-environmental interaction. - the Grand Canyon - Big walker mountain tunnel - south texas nuclear generation station - the lunar eclipse - urban sprawl

Why is it possible to use physical properties to sperate a mixtuere

Tropical open ocean waters have the highest rate of primary productivity in the world's oceans. a. True b. False

Having children is one way to express marital love true or false

Crystal drew a quadrilateral with two sets of parallel equal sides. Which shape did she draw

Which of the following terms describes a family structure headed by a woman?

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