"Asthma and cancer coal-burning power plants?

1)are major causes on
2)have resulted in
3)are contributing factors in
4)are major causes in
5)lead to
6)are the outcomes of
7)trigger
8)trave an effect on
9)give rise to

Asthma and cancer are the outcomes of coal-burning power plants

i used to know but i learned it a long time ago sorry

explanation:

answer: life tends to copy things that already exists rather than taking old ides and making it into something new

explanation: