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Key Area 3.5

Revision for Key area 3.5 Food production

QuestionAnswer
State 2 alternatives to the use of pesticides GM crops and Biological controls
Nitrogen is absorbed by plants in the form of ... Nitrates
How can humans artificially add nitrates to soil? By using fertilisers
What can results from fertilisers leaching into freshwater Algal bloom
Name one example of a pesticide DDT
What is an adverse effect of pesticides Bio accumulation of pesticides in a food chain
Which level of a food chain has the highest concentration of pesticides accumulating The top level (top predators e.g birds of prey)
Define biological control Using one species or biological agent to control the population size of another species
Created by: MissBryce
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