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:
b)
Explanation:
Are those that become tornadoes, reaching the speed of 480km/hour and measuring up to 1500 mts in diameter in the soil, travel more than 100 km away.
She should have called 911 so that the call would be on record and to get further advice on how to help him. She didn’t seem to ask him any questions about his health, medication he is taking or what happened. She could have injured him more by moving because she didn’t have the proper equipment to treat him nor transport him properly. She could have also injured her self by carrying him also she doesn’t know if he is in the right state of mind or if he has any weapons on him. Being a nurse, she should have know better.
C. Wind turbines are more reliable then solar cells.
The answer is sensory neurons
