An area must have at least 100 times the standard concentration of mineral deposits to be considered for mining. true false

The age of the volcanic rocks in Hawaii islands are known. What does the age indicate? a) Individual magma generations from different hot spots b) Rocks formed by continental collision c) Direction of plate movement

Why are ecologists unsettled on whether or not any truly commensal interactions among organisms?

What is earth heat source?

What color can a human eye cant see

Explain how leaders of the European Union believe the culture impacts development.

What is the population of Texas

In "Rider in the City," what type of character is Margie? A static character because she changes B dynamic character because she changes C static character because she stays the same D dynamic character because she stays the same

The principle of uniformitarianism states that geologic processes that happened in the past cannot predict or explain why current geologic processes happen. True False

Dams are often built to generate power. One negative impact of damming a river is reduced flow downstream water storage to battle a drought increased recreation opportunities flood control

What three cities form the global centers of economic activity?