FACT OR OPINION

1. The earth is round. Summer follows spring.
2. I think that rock music is awful.
3. The 2010 world cup took place in South Africa.
4. The legal age for drinking should be lowered to 16.
5. The British Winter of 2009/2010 was the coldest for 30 years.
6. London is the best city in the world.
7. Biology is a branch of Science.
8. Algebra is an easy subject to take up.
9. The song "Roar" is sung by Katy Perry.
10. Katy Perry is a great singer.