What is true about black holes? They have intense gravitational pull.
Light can not escape from them.
Surrounded by powerful magnetic field.
All the above.

Which important safety precautions should be taken during a tornado? check all that apply. stay away from doors and windows. move to high ground to avoid flood waters. try to avoid the storm by driving or running. stay outside to avoid being trapped in a building. lie on the floor and cover your head.