Question

B. I, II
D. I, II, III, IV
11. In order for an organism to survive, nutrients are needed. What are the
nutrients that planet Earth can offer for an organism to exist?
A. Earth has an atmosphere and ozone layer,
B. Earth has both water cycle and nitrogen cycle.
C. Earth has natural activities to circulate nutrients.
D. All of the above
12. Many studies have shown similarities of Earth and Venus. What makes
Earth similar with Venus?
A. Earth and Venus have the same orbit.
B. Earth and Venus have the same diameter.
C. Earth and Venus have the same atmosphere.
D. Earth and Venus are of the right size to hold a sufficient atmosphere.​

Answer 1

Answer:

11.(c)

12.(d)

Explanation:

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Answer 2

11)

• From the given question the correct option is C.
• As we know that for their surviving purpose organisms require nutrients.
• Earth provides nutrients to organisms through natural activities.
• The nutrients circulate through the biogeochemical cycle, it is nothing but the cyclic flow of nutrients.

12)

• From the given question the correct option is D.
• As we know that earth and venus have similarities.
• The atmosphere of Venus is about 100 times thicker than the earth while the atmosphere of earth is 100 miles thick.  
• To hold a sufficient atmosphere ​Earth and Venus are of the right size.