Which is one way that sink wholes can form?

1. h

2.a

3. i

4. d

5. b

6.f

7.g

8.e

9.c

i hope that this is

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.