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1. 
An ecosystem is an area which is composed for living and nonliving beings. What living beings or biotic that appear in the ecosystem terrestrial?
A.
Animals, plants, planets
B.
Water, air, fire
C.
Plants, animal
D.
Rocks, animals, water
2. 
Nonliving beings interact too in an ecosystem. What are nonliving beings that appear in the ecosystem?
A.
Rocks, frogs, flowers
B.
Water, rocks.
C.
Trees, birds, water
D.
Air, trees, water
3. 
Air, trees, water
A.
Fish, sun, water
B.
Earth, seeds, flower
C.
Trees, birds, bacteria
D.
Roots, Plant, Leaves, Beans
4. 
It is not a living being
A.
Water
B.
Flower
C.
Plants.
D.
Humans
5. 
An example of living beings is
A.
Mountain
B.
Water
C.
Birds
D.
Cage