
Pollution of Water
Authored by Regina Cecilia
Biology
7th - 9th Grade
Used 2+ times

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5 questions
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1.
OPEN ENDED QUESTION
5 mins • Ungraded
What do fertilisers contain, that make plants and algae grow faster ?
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2.
OPEN ENDED QUESTION
5 mins • Ungraded
Explain why the plants die, when they do not get enough light!
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3.
OPEN ENDED QUESTION
5 mins • Ungraded
Explain why the population of bacteria in the water increases after the plant die!
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4.
OPEN ENDED QUESTION
5 mins • Ungraded
Explain why the fish die, when they do not get enough oxygen!
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5.
OPEN ENDED QUESTION
5 mins • Ungraded
Suggest what happen to the populations of birds that feed on fish!
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