Answer:
No short answer.
Explanation:
First and second generation pesticides differ vastly in terms of their contents and effects.
First generation pesticides were used in early 20th century up until the 1940's and they consisted chemicals such as mercury and lead which were not biodegradable and they started adding up in the soil until it was not fertile anymore. Second generation pesticides were divided into three groups as chlorinated hydrocarbon, organophosphates or carbamates and consisted of chemicals that were less harmful for the soil and did not accumulate over time. Some examples to second generation pesticides can be DDT or dimethoate.
Broad spectrum and narrow spectrum pesticides have the difference of effective range between them. Narrow spectrum pesticides are designed to target a specific organism such as a specific plant or an insect whereas broad spectrum pesticides are applicable to a wider range of organisms and still have the same effect for each.
Chitin Inhibitors can be given as an example of narrow-spectrum pesticides and the second generation pesticides in the answer can be given as an example of broad-spectrum pesticides.
I hope this answer helps.
Answer:
The correct answer will be option-ulnar nerve
Explanation:
The ulnar nerve is the nerve which passes which transmits the signals from the forth and fifth finger of the hand thus it to some extent controls the movement of hands. The ulnar nerve passes through the elbow.
If we hit inside of the elbow, we get a feeling of tingling and dull pain funny feeling which gives the name of the bone as the funny bone. Anatomy shows that the funny feeling is the result of the bumping of the ulnar nerve as the no funny bone exists in the world.
Thus, the ulnar nerve is the correct answer.
Answer:
plates moving
rocks breaking
movement below the surface
Explanation:
Answer:
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all of the above can be considered ecosystems
