Answer:
the main idea is that bikes have a lot to do with society the problem is that most people don't think of the bicycles so they don't make the lanes for them and the solution is make more bike lanes because they are a main source of transportation
The hepatitis one...I think. if you know for sure I an wrong then it's definitely the first one about HIV
Answer: cellulose gives cell walls of plants their rigid structure
I believe it could be true? ...... hope this helped
