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LoE - Human Impact

Life on Earth - Topic 5 - Human Impact on the Environment

QuestionAnswer
What type of farming involves using chemicals such as pesticides and fertilisers? Intensive farming
What alternative to intensive farming involves inserting a useful gene into another species? Genetic modification
What alternative to intensive farming involves introducing a predator or disease to control a pest population? Biological control
Describe an advantage of intensive farming. Increases crop yield
Describe a disadvantage of using fertilisers. Causes algae bloom
Does algae bloom increase or decrease the number of bacteria found in the water? Increase
Does algae bloom increase or decrease the level of oxygen in the water? Decrease
What chemical in fertilisers help plants grow? Nitrate
Describe a disadvantage of using pesticides. They build up in the food chain and become toxic to the top predator
Created by: StNiniansHS