You can probly scan there blood and tell who it is.
Answer:
I'm going to say nuclear power plants.
Explanation:
I heard that this generates electricity. I hope this helps! Keep learning! :)
Because it was not tested multiple times by other scientists
The first reason is that Thats because the seeds will remain dormant until they have the resources they need for eg: some seeds are frozen in winter so that they wont germinate until they have enough resources in spring .