What is a central idea of “We’re Going to Mars!” Part A

What’s is the central idea of “We’re Going to Mars!”?

A. Studying Mars will help scientists learn more about Earth.

B. Studying Mars will help scientists learn more about Earth.

C. Conditions on Mars are changing to become more suitable to support life.

D. Life on Mass will be uncomfortable because Mara is too cold for humans.

Part B

Which detail best supports the answers Part A?

A. “Also, studying sediments, rocks, and soils, as well as volcanoes and meteoroid impact sites, can help scientists study details of Earth’s evolution.”

B. “It would be an important moment in the history of humanity, ranking up there with the discovery of ‘The New World’ and the moon landing.”

C. “If SpaceX, a private company dedicated to space travel and exploration, has any day in it, humans will reach Marx as early as 2022.”

D. “However, evidence suggests that life may have existed in bacterial from billions of years ago.”