1. The adverb that modifies the verb is c) ever. Without it, it wouldn't be completely clear as to which time frame the speaker refers to. It may have been for example the last year, or in some other particular moment.
2. The adverb that modifies the verb is b) always. It adds to the sense of urgency of wearing a life jacket when rafting. Without it, the meaning of this sentence wouldn't be so precise.
Answer:
part a: Modern technology such as solar nets will help save the environment.
part b:"Sea turtles are endangered because fishermen inadvertently catch them in their nets, which can cause the turtles irreparable harm."
Explanation:
cuz i said so
