Here's the matching of sentences from column A with those in column B:

1. Lots of people don’t care about protecting the environment. - **f**. They’re all dead. It’s terrible.
2. Is earthquake a kind of natural disaster? - **h**. Man-made?
3. They must stop throwing trash into the river. - **i**. Yes, of course.
4. How is your topic Global Warming? - **e**. There must be programs to raise their awareness.
5. I heard lots of promises to reduce waste. - **d**. We should do what?
6. What time do you have the presentation? - **c**. We start it at 9 o’clock.
7. We should reduce our use of plastic products. - **b**. They don’t either grow well or have blossoms.
8. How can high temperature affect crops? - **a**. Which river do you mean?
9. Look at those fish in the river! - **f**. They’re all dead. It’s terrible.

(Note: Sentence 9 might work with both options, depending on context, but "f" appears most relevant.)