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Question 1 of 6
1. Question
Choose TWO letters, A-E
Which two problems are caused by water hyacinth?
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Question 2 of 6
2. Question
Choose the correct letter, A. B or C.
3 Where was water hyacinth originally from?
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Question 3 of 6
3. Question
4 What is the primary cause of the decrease in nutrients from the soil?
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Question 4 of 6
4. Question
5 When will the biological solution bring risks to the environment?
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Question 5 of 6
5. Question
6 What does John say about the mechanical solution?
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Question 6 of 6
6. Question
What is the benefit of the cut down water hyacinth to each of the following aspects?
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Benefits of the cut-down water hyacinth
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- can reduce the effect of global warming
- can make quick profits
- can produce materials for plants to grow in
- can be good for human health
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Dried water hyacinth
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Mushroom farmers
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Oyster and straw mushrooms
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Cows
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