Which process squeezes layers of sediment together? compaction
deposition
erosion
weathering

Idon’t know how to solve this question

When balancing a chemical equation:

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together