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Question 1 of 10
1. Question
Soil is considered an ecosystem. Which of the following supports the statement?
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Question 2 of 10
2. Question
Why are green plants considered as autotrophs?
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Question 3 of 10
3. Question
Of the following organisms listed below, which one is considered heterotrophic?
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Question 4 of 10
4. Question
An ecosystem that suffered ecological imbalance can recover naturally through _____.
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Question 5 of 10
5. Question
Which of the following shows the transfer of food between all life forms?
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Question 6 of 10
6. Question
A simple food chain consists of the following: The cob worm that feeds on the corn is eaten by the small bird and this bird is then eaten by the hawk. What will happen to the organisms involved in the food chain if the worm is killed by pesticide?
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Question 7 of 10
7. Question
One environmental activity that may reduce water pollution is the __________.
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Question 8 of 10
8. Question
Global warming is an environmental problem being brought about by activities of man that change the quality of air. This may result to the following, except __________.
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Question 9 of 10
9. Question
Of the following listed below, which one is considered the most disadvantageous source of energy since it gives detrimental effect on the population’s food supply?
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Question 10 of 10
10. Question
The major concern about global warming arises from increased concentration of ______.
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