Answer: B. misuse

Detailed reasoning: The clause “our environment is now in danger” implies an incorrect or excessive way of using pesticides. “Misuse” precisely means using something in a wrong or harmful way, which causes environmental danger.

Option-by-option analysis:

A. use → Neutral; does not imply harm.

B. misuse → Correct; wrong use leads to danger.

C. misproduce → Uncommon and not contextually appropriate.

D. produce → Focuses on making, not using.

E. production → Refers to manufacturing, not the harmful action.

LaTeX note (required symbols): Harmful impact from misuse is \( \gt \) the impact from normal use.

Answer: D. store

Detailed reasoning: Dams are constructed to hold or keep water for later use such as irrigation, electricity, or consumption. “Store” directly matches this main function.

Option-by-option analysis:

A. arrange → Means organize, not applicable to water in dams.

B. regulate → Partially true, but not the primary purpose stated.

C. manage → Too general.

D. store → Correct; dams keep water.

E. treat → Refers to cleaning or processing water.

LaTeX note (required symbols): The function “store” is \( \gt \) “regulate” in describing the basic purpose of dams.

Answer: E. given a push up

Detailed reasoning: “Boosted” means increased, encouraged, or pushed upward. In the context of production, it clearly refers to raising or promoting output.

Option-by-option analysis:

A. stopped the challenge → Opposite meaning.

B. prevented the progress → Opposite meaning.

C. given a blow → Negative effect.

D. decreased → Opposite meaning.

E. given a push up → Correct; closest synonym of “boosted.”

LaTeX note (required symbols): Increasing production is \( \gt \) maintaining the same level.

Answer: A. different

Detailed reasoning: “Distinct” means clearly different from each other. In banking, current and deposit accounts are not the same; they differ in function and rules.

Option-by-option analysis:

A. different → Correct; exact synonym.

B. important → Unrelated to meaning.

C. similar → Opposite meaning.

D. separated → Close but emphasizes physical separation, not difference in type.

E. equal → Opposite meaning.

LaTeX note (required symbols): “Distinct” accounts are \( \gt \) identical accounts in terms of difference.