Which might be the gist of text “At Home on Mars”?

A. the technology we will use to travel to Mars and other planets
B. what an average day on Mars will be like for people in the future
C. how we can make Mars a place where people can live

The following sentence is the first sentence of a summary of paragraphs A-D. Please choose three other sentences to complete the summary of “At Home on Mars”.If we want to live on Mars someday, we will have to change it so it is similar to Earth.

A. Wind turbines can produce power using wind energy.
B. We will need to increase the average temperature of Mars.
C. A huge amount of greenhouse gases is making Earth’s atmosphere warmer.
D. Releasing greenhouse gases on Mars will help create a suitable environment.
E. Changing Mars will be a long process, but scientists think we will live there someday.

Choose words from the article to complete this summary.Mars as a planet is not 1________. There is not enough oxygen to breathe. There is no 2________, just ice, and it can get very cold there. Some scientists, however, believe Mars can be terraformed. Perhaps factories could be built to increase the levels of 3_______. This would change the atmosphere on Mars. But terraforming Mars would take many centuries and would be expensive.The first step would be to send 4_________ missions there. Then homes could be built. Enormous 5__________ would be required, first for plants, then for people. Perhaps 6_______ or wind turbines could be used for power. But even after 1,000 years, people might need to wear equipment similar to 7________ in order to breathe.