How does the speaker know that the lump of metal she is holding is an asteroid

What is associated with mid-ocean ridges?

What was one effect of european influence on southeast asia? new roads and railroads were constructed. rulers built palaces in the european architectural style. the vietnamese absorbed much of the european culture. the islamic religion spread throughout the region.

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