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1. Pioneers and explorers have colonized new places because of:

Depletion of resources Overcrowded living conditions Economic freedom Religious freedom All of the above

2. The most critical aspect of developing a colony on Mars is the development of a:

Propulsion system Life support system Transportation system Communications system None of the Above

3. An air revitalization system based on bioregenerative processes would use what to produce breathable air for humans:

Plants Microbial life Chemicals Scrubbers Water

4. Water that has been used for washing or showers is called:

Waste water Used water Dirty water Gray water White water

5. Sunlight on Mars is what percent that of sunlight on Earth?

63% 15% 43% 90% 50%

6. A human colony on Mars could use:

Solar power Nuclear power Wind Power Geothermal energy All of the above

7. Benefits for people on Earth that are developed in the space program are called:

Innovative technologies Transferred technologies Spin-offs Sidecars Offshoots

8. To terraform the planet Mars you would need to:

Bring plants and animals to Mars Create a greenhouse effect Find a source of water Build a colony Pulverize an asteroid