How old the rock is
thats my answer
Answer:
Small pieces of rock that settle at the bottom of rivers, lakes, and streams. Can also contain dead animal and plant matter or fossils. A type of chemical weathering that forms when fossil fuels, coal, and oil are burned and produce oxides that are released into the air and react with sunlight and water.
Explanation:
I think it's true, if I'm wrong I'm sorry.
D. Islands used for agriculture
they keep law and order in society
