Life on Earth - Topic 5 - Human Impact on the Environment
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What type of farming involves using chemicals such as pesticides and fertilisers? | Intensive farming
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| What alternative to intensive farming involves inserting a useful gene into another species? | Genetic modification
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| What alternative to intensive farming involves introducing a predator or disease to control a pest population? | Biological control
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| Describe an advantage of intensive farming. | Increases crop yield
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| Describe a disadvantage of using fertilisers. | Causes algae bloom
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| Does algae bloom increase or decrease the number of bacteria found in the water? | Increase
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| Does algae bloom increase or decrease the level of oxygen in the water? | Decrease
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| What chemical in fertilisers help plants grow? | Nitrate
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| Describe a disadvantage of using pesticides. | They build up in the food chain and become toxic to the top predator
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Created by:
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