I think B and also what diagram?
Explanation:
Hello! I think this page might help your question about second-hand smoking! :)
htt p://sar inapro.we ebly.co m/uploa ds/3/8/5/0/38501545/chp_16_tobacco.pdf
Just take out all the spaces. The page talks about the 60 percent of second-hand smoking and why you shouldnt.
Thanks!
- Liv
True.
Since the conference level is more formal then it should use more complete grammatical structure and a more varied vocabulary. Since in a casual conversation eloquence doesn't matter as much, it makes sense that the answer is true.
Continent is synonom of the proper noun Africa.
B. resolve is a problem-solution signal word