Which statement about nuclear energy is not true?

A. Many countries use electricity generated by nuclear power

B. Nuclear energy involves the danger of leaks or explosions

C. Refining Uranian contributes to global warming

D. One advantage is its use of uranium a renewable resource

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