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What is a rock made of sand?

Breaking rocks into smaller pieces without altering their chemical composition is what type of weathering?

Leaching is caused by what type of weathering?

When a chemical reacts with another chemical, a reaction and change occurs. This is what type of weathering?

This tells the relative age of a rock

Rocks that undergo pressure and heating without melting form what type of rock?

Layers of sediment getting compressed from the weight above and minerals dissolving in water and seeping between bits of sediment and gluing them together from what rock?

This tells the absolute age of a rock