These are always that B. nonhuman life in an urban ecosystem differs from that in an undeveloped forest ecosystem. That is the correct answer.
Pros:
It is (mostly) based on pyrethrine spray which kills the
insects rapidly.
It not poisonous to other animals.
It uses synthetic, natural spray which is safe to use because
it breaks down within 10 minutes.
Te technique can reach tall forests.
It can be used in closed spaces ( greenhouses, basements
etc).
Cons:
It requires windless circumstances ( which is mostly at
nights).
Breathing fog may cause respiratory and throat irritation to
some.
Supongo que solo trata de probar cuál es cuál con una prueba que inventas. eso es muy confuso