What is the opening at the top of a volcano called?

What is a planetary nebula?

What makes a mineral a silicate or a non silicate?

Select all that apply: What are the differences between oceanic crust and continental crust? Question 5 options: Oceanic crust is younger than continental crust Oceanic crust is completely under the ocean, continental crust is mostly above the ocean

Which of the following is a characteristic of P-waves? a. They travel slower than other seismic waves. b. They displace the rock back and forth in a direction that is perpendicular to their travel direction. c.

The term "abundant" most likely means

5 3/8 + (6 3/4 - 4 1/8)

Which is accurate of the urban poor? A. They're often rural migrants with no title to housing or rights to established businesses. B. They live in apartment complexes. C. They have access to healthcare and obtain an education. D.

De ce sunt vulcanii activi in america?

How does still water affect glaciations?

What does lava become when it cools A. obsidian B. Basalt C. granite D. all lava could become either for of igneous rock