Which of the following prevent an injury? a. picking the right activity for your abilities. b. knowing how to perform an exercise correctly. c. training in sensible locations. d. all of the above.

D, all of the above.

Explanation:

The right activity is important so that you don't hurt yourself doing something too strenuous.

Your need to know the exercise in order to not get hurt. Technique is very important to prevent injury.

Training in sensible locations means that:

If you hurt yourself, you can get help.

You have enough space to perform an exercise.

You have the right surroundings to perform an exercise (you wouldn't do a flip onto concrete).

the plates spread at mid-ocean ridges (they are divergent plate boundaries) which allows magma to rise through the weakness between the plates. the magma then emerges as lava from the boundary and cools, creating a new crust.