An igneous rock has large red, black, and green crystals. How else can this rock be accurately described?
A: fine texture
B: cooled quickly
C: intrusive origin
D: created by lava

Using complete sentences, describe the central economic problem facing all humans. why does this require people to make choices? how can this result in opportunity costs?

Which statement about this figure is false

What can happen to solar radiation when it enters earth’s atmosphere? check all that apply. it is absorbed by earth. it is reflected by clouds. it is reflected by glacial ice. it is condensed into visible light. it is amplified by water molecules.