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DDT is a persistent chemical - it does not break down after it is used. So if you spray DDT to kill bugs, and birds eat the bugs, the birds now have DDT in them. Some species of birds almost went extinct because the DDT made their eggshells so weak that the chicks couldn't survive. You don't want to have a chemical around that solves one problem, but creates a hundred more.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoAdd your answer:
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What is being done about ddt?
nothing is begging done about ddt yet
Does it possible for scientist to breed some miniature human?
Not yet, it would be considered cloning, and it has been banned in most countries in the world.
Should londonbluenose be banned off FF?
Has he answered his own question yet? If not then yes he should be banned
Is it possible to clone a human?
Yes. It can be done in the same way as did in sheeps,cow etc. But human cloning is legally banned in many countries.
Does caffeine naturally appear in foods?
Caffiene doesn't naturally appear in food, yet it does appear in plants as a natural substance and is a pesticide. The caffeine is then stripped off the plant and used in products such as coke or coffee. Caffiene doesn't naturally appear in food, yet it does appear in plants as a natural substance and is a pesticide. The caffeine is then stripped off the plant and used in products such as coke or coffee.
Why is blue whales endangerd?
Mainly over hunting by nations that have not banned whaling yet, but should.
Where can you find registeel in Pokemon indigo?
They are not in this version of Indigo yet. You could get it in by hacking, but you may get banned if you do that.
Why Do People not have to worry about pesticide residues?
Because there is no sufficient evidence to prove this theory. A theory is only as good as the evidence it is based on, in this case not much. I do not worry about pesticide residues because no one has yet suffered anything from it. People don't have to worry about pesticide residues because the E.C.P.A (European Crop Protection Association) is very strict to ensure that their customers are protected and not exposed to residues levels that can affect our health.
Which countries in the world do not have TV's yet?
usa
What can you do if your banned from cybering and other people cyber to but they don't get banned on flipnote hatena?
You can report the others for cybering. And hope you are not permabanned yet so you will have a chance to enjoy the site within the terms of use.
Is California using methyl iodide as a pesticide yet?
Not as of September 2010. There appear to be some possible issues regarding groundwater contamination which have delayed any potential approval from the state.
What are environmental causes of Parkinson's Disease?
herbicide and pesticide exposure an as-yet-unidentified toxin or virus cellular damage from oxidation by free-radicals (atoms or molecules with an unpaired electron)
