Which substance forms from organic remains?

Where are most geological activity occur

LAB 2 5. Intrusive rocks crystallize below the earth's surface, while extrusive rocks erupt and crystallize at the surface. Why do the grain sizes (texture) vary in these two types of igneous rocks? 6. Examine a sample of porphyritic igneous rock.

What factors influence population growth?

The mercator map is historically one of the worlds morst popular map projections. Describe this projection. Why was it created, and what kind of distortion can you see

When the continents separated, some of the same species ended up on different continents this was due from a. geologic time c. plate tectonics b. evolution d. natural selection

After chloroflurocarbons were banned, which class of chemicals was used in their place? a. hydrofluorocarbons b methane c. sulfur dioxid d. carbon dioxide

What is the most likely reason the Pueblo constructed most of their buildings out of adobe? A. The architectural style of this type of building was appealing to Pueblo society. B.

This type of economy is often found in a democracy. A) command economy B) traditional economy C) market economy D) restricted economy

How is ozone beneficial to life on earth?

Which of the following has a direct effect on precipitation and climate?