The answer for Part A is B) Climate change will have long-lasting effects on our environment.
The answer for Part B is C) "So even if we stopped emitting all greenhouse gases today, global warming and climate change will continue to affect future generations."
It means that you have propperly passed and taken the driving test and passed and gotten the driving rules correctly.
A noun is refering to a person, place, or thing. An example of a noun, your name. Anything that is something basically.
A verb is an action that has been done. Like for example "He ran or she jumped". Any type of action that someone is doing, that is a verb.
Hope this helped ._.