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DDT
,Created page with "==Key Stage 3== ===Meaning=== DDT was a pesticide (poison) used on crops to kill aphids which would damage the crops. ===About DDT=== : The DDT was sprayed on crops t..."
==Key Stage 3==
===Meaning===
DDT was a [[pesticide]] (poison) used on crops to kill aphids which would damage the crops.
===About DDT===
: The [[DDT]] was sprayed on crops to kill aphids.
: Ladybirds would then eat the aphids and take in the same [[pesticide]].
: Birds would eat the ladybirds and the [[pesticide]] would build up in their systems.
: Birds of prey then ate the birds getting even more [[pesticide]] inside them.
: It turned out this [[pesticide]] made the shells of the bird of prey's eggs very weak. This meant most of the eggs cracked and the baby birds died before hatching. The population of many birds of prey dropped very quickly.
: [[DDT]] was banned when they discovered its harmful effects on birds of prey.
===Meaning===
DDT was a [[pesticide]] (poison) used on crops to kill aphids which would damage the crops.
===About DDT===
: The [[DDT]] was sprayed on crops to kill aphids.
: Ladybirds would then eat the aphids and take in the same [[pesticide]].
: Birds would eat the ladybirds and the [[pesticide]] would build up in their systems.
: Birds of prey then ate the birds getting even more [[pesticide]] inside them.
: It turned out this [[pesticide]] made the shells of the bird of prey's eggs very weak. This meant most of the eggs cracked and the baby birds died before hatching. The population of many birds of prey dropped very quickly.
: [[DDT]] was banned when they discovered its harmful effects on birds of prey.