11. In order for an organism to survive nutrients are needed.What are the nutrients that plants 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 off the right size to hold a sufficient atmosphere.
13. what makes you man and other living organisms capable to live on earth?
A. earth can provide food for the organism.
B. earth can protect the organism from any possible threat.
C. earth temperature is mostly hot compared to other planets.
D. earth has the right amount of temperature, water, good atmosphere, and favorable climate.
14. planet earth is considered idifferent from any other planets in the solar system which among the given choices correctly answers the statement?
A. first is the only planet that changes structure.
B. earth is the only planet that turns around in space.
C. earth is the only planet that is mostly covered with water.
D. earth is the only planet that is mostly made from rocks.
15. what is the reason why every living thing on earth has the chance of survival?
A. earth is covered with 65% water.
B. earth thickatmosphere consisted mainly of carbon dioxide.
C. earth has active volcanoes similar with those that are found in venus.
D. earth has ozone layer to protect living organisms from harmful radiation.


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