There are 6 common types of pesticide that are recognized and seen quite often:

1. Insecticides which are mainly used to kill insects, ticks, and mites.
2. Herbicides which are mainly used to kill weeds.
3. Fungicides which are mainly used to kill mildew and other fungi.
4. Rodenticides which are mainly used to kill mice, rats, and other rodents.
5. Disinfectants which are mainly used to kill bacteria and mold.
6. Wood Preservatives which mainly protects wood from fungus and insects invading it's system.

There are different types of families for pesticide as well at a much deeper level.

7 0

3 years ago

What physical quantity does the symbol V represent?

AleksAgata [21]

Answer:

voltage

Explanation:

6 0

3 years ago

The all-or-none phenomenon as applied to nerve conduction states that the whole nerve cell must be stimulated for conduction to

Sphinxa [80]

Answer:True

Explanation:

Nerve impulse must reach a certain threshold in a neuron before action potential can be generated to intiate conduction of action potential.

Therefore if mutiple impulses are generated and these are not upto thresholds , no matter how strong the stimulI are-NO ACTION POTENTIAL WILL BE GENERATED.

THIS IS ALL OR NONE PRINCIPLE

The all or none hypotheses can be best explain with flushing of the water closet after using it. If required volume of water is not pumped into the water closet storage above, no matter how long the handle is push, FLUSHING WILL NOT TAKE PLACE.Thus the threshold volume of water must be met.

6 0

3 years ago

When an organism has died, the ratio of C-14 to C-12 _____ over time.

Mrrafil [7]

The answer is C. decreases.

C-14 and C-12 are carbon isotopes used to measure the approximate age of organic remains. C-12 is stable, and it does not break down into other elements over time. C-14 is not stable. It breaks down into N-14.

Organisms can incorporate C-14 into their bodies during the life. But when the die, C-14 is not incorporated anymore. After organisms' death, C-12 will remain stable, but C-14 will start to breaks down into N-14. So, it will be less C-14 and C-12 will remain the same. The ratio of C-14 to C-12 must decrease over time.

4 0

3 years ago

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