It is harmful because motor vehicles spit out gas and like fumes. That can lead to pollution in the air.
It is beneficial because it helps people get to places they need to get to quicker
Collecting and burning natural gas.... could b wrong
Answer:
Explanation:PRC1 accumulates on the central spindle in anaphase,
and suppression of PRC1 expression causes failure of microtubule interdigitation.
When you breath in you breath in oxygen, which comes from plants, when you breath out, you breath out carbon dioxide, which is what plants breath.
