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science study sheet
science secshon a
Question | Answer |
---|---|
the molten rock in the earth's mantle is called | humas |
is the decaying plant and animal material in the soil. | magma |
is a very durable artificial rock. | shale |
which rock smells like mud when it is wet. | conerete |
is used to make chalkboards. | graphite |
is used in pencils instead of lead. | slate |