Which of the following statements is true? With an explanation For your answer.

A)

Since 1940, the production of electricity in the U. S. has not increased.

B)

Fossil fuels take millions of years to form.

C)

Most of the world's population lives in industrial areas.

D)

Hydroelectric power plants do not impact the environment.

Which of the following statements is true? 1. the mantle of the earth is made of solid nickel and iron. 2. the crust of the earth is made of solid nickel and iron. 3. the inner core is made of solid nickel and iron.

Describe two recent or ongoing space missions.

One of the newest applications of cell technology is called cybrid embryos. this process involves replacing the nuclear material of an animal cell with human nuclear material. how might this process affect public policies about research by using stem cells? the same policies and concerns about the use of human embryonic stem cells would most likely apply. the embryos would most likely be treated like traditional animal embryos and regulated accordingly. the process of forming cybrid embryos would most likely be banned by government regulators. the embryos would be treated as regular cells because they are not fully human in origin.