Which of the following sources provides detailed information about only the upper mantle’s composition? 1. Seismic waves
2. Earth’s magnetic field
3. Meteorites
4. Volcanic activity

Explain the cause for movement river valley civilization to early industrial centers

Which statements are accurate about snow flakes

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