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Which one of the following is least persistent insecticide?

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Important Questions on Environmental Chemistry

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Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
The group of chemicals used as pesticide is
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Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
Which is not suitable method for growing crops?
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Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
Which among the following pairs has only herbicides?
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Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
Which amongst the following is not a pesticide?
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Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
2,4-Dichlorophenoxyacetic acid is used as
MEDIUM
Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
Which of the following is not a herbicide?
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Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
Which of the following is not a herbicide?
EASY
Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
Spraying of DDT produces pollution of the type _______.
EASY
Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
Which among the following is an insecticide?
EASY
Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
Most herbicides attack                 .  
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Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
Which two pesticides have the same mode of action? 
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Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
Negative soil pollution is
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Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
DDT is
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Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution

Herbicides are used to control?

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Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
Which of the following is not a chlorinated insecticide?
MEDIUM
Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
Which of the following is an insecticide
EASY
Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
Negative soil pollution is
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Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
Match List I with List II and select the correct answer using the codes given below the lists:
 
List I (Pollutant) List II (Source)
A Microorganisms 1. Chemical fertilizers
B Plant nutrients 2. Abandoned coal mines
C Sediments 3. Domestic sewage
D Mineral acids 4. Erosion of soil by strip mining
  5. Detergents
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Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
Fungicides are organic compounds of
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Chemistry>Inorganic Chemistry>Environmental Chemistry>Soil Pollution
Cotyledons are also called-