State whether the statements are True or false. 1. Metals such as copper, iron, lead, and gold is obtained from rocks called ores.
2. In olden times, people used to make clothes out of rocks.
3. Ceramics are made out of grains.

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Impressions of tropical swamp plants were observed on rocks in polar regions. the impressions were dark black imprints, which means the fossils are examples of ( 1 ) the fossils tell us that polar regions ( 2 ) ( 1 ) a. carbonization b. mineralization c. trace fossils ( 2 ) a. had tropical plants that can grow in ice b. might have had a diffierent climate in the past c. will have abundent vegitation

Which of the following terms describes the layers of air surrounding the earth ?

He resistance of a liquid to flowing is called