B. its atmosphere is the same as the earths
C. there is a good supply of water on Venus
D. the days on Venus are long enough
23. On Venus there is a lot of______.
A. water B. carbon dioxide
C. carbon monoxide D. oxygen
24. Algae are plants that can______.
A. live in very hot temperatures B. live in very cold temperatures
C. manufacture oxygen D. all of the above
25. Man can eventually land on Venus only when______.
A. the algae have done their work B. the atmosphere becomes cooler
C. there is oxygen D. it rains there
21. C 22. A 23. B 24. D 25. D
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