but there is no errors of noun-adjective .
ANSWER: the answer is A (the first one)
1.van venir. Vienes
2. voy
3. van
It should be this, I grew up with spanish as my first language and this is how we say it. I hope its right because we sometimes tend to use slang and sometimes we don't.
La pollucion es una problema en todos lados. Es una problema comun mundial. Ha incrementado porque mas y mas gente.. I would help you with the rest but its too many sentences lol.