SB4i: Biological Control And Fertilisers Keywords Flashcards

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1
Q

Biological control

A

Using living organisms to kill problem organisms such as pests or weeds.

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2
Q

Fertiliser

A

Substances that add plant nutrients to soil, such as artificial fertilisers containing nitrogen compounds, or manure (a natural fertiliser made from animal waste).

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3
Q

Pollution

A

Harm caused to the environment, for example by the addition of poisonous substances or by abnormally
high amounts of a substance.

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4
Q

Weeds

A

Plants that are growing where they are not wanted, and where they cause problems such as competing with crop plants for light, water and nutrients.

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