Please help me with all of them i don’t have any clue what i’m doing will give brainliest for work

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles

How is the way a mixture is combined different from how a compound is combined?