10 exercise/health questions. asap!

1. why are children in low income neighborhoods more likely to be less physically active than children in other communities?

their homes are not close to parks and playgrounds
they are allowed to skip physical education classes at school
their communities are not interested in public health
their parents do not allow them to participate on sports teams

2. i want to change my diet so i can be healthier within the next three months. what change would make this statement a more powerful goal?

make it attainable by setting a more realistic expectation
make it deadline-driven by allowing for more time
make it interesting so it is easier to accomplish the goal
make it measurable by stating what it means to be healthier

3. samantha wants to study circus performance when she gets to college. she has mastered many physical skills already, but she keeps falling short on her jumps. which skill should she work on to get better at her jumps?

agility
reaction
balance
power

4. which of the following activities will most likely edward decrease his stress level?

running after school
going to bed later
waking up later
eating more at breakfast

5. )if you are breathless and unable to talk normally during exercise, you should immediately

stop and notify your doctor
drink more water
go inside to rest
lower your exercise level

6. alex used to spend two hours a day playing video games after school. he has replaced one of the video game playing hours with an hour of running. what do you predict will be a result of this change?

a decrease in his appetite and an increase in his energy level
an increase in his energy level and an increase in his stamina
an increase in his energy level and decrease in his appetite
a decrease in his stamina and a decrease in his energy level

7. during really easy workouts, you work out at the lowest end of your target heart rate zone. what should the words in italics be replaced with to make this sentence more precise?

high frequency
low intensity
high intensity
low frequency

8. your neighbor, a 45-year-old friend of your family, has asked you for advice about muscle strength. she wants to know whether it is too late for her to start focusing on her muscles to improve her health. what should you tell her?

benefits of muscle strength decrease as you get older.
benefits of muscle strength increase as you get older.
benefits of muscle strength do not offer much for health.
benefits of muscle strength have not been analyzed adequately.

9. alex's doctor says he has great strength and flexibility, but she is worried about alex's cardiorespiratory health. the doctor asks him to list the activities he participates in regularly. alex lists weightlifting, karate, rollerblading, and bowling. which activity should alex's doctor encourage him to participate in more often to increase his cardiorespiratory health?

weightlifting, because it is aerobic with short duration
karate, because it is anaerobic with short duration
rollerblading, because it is aerobic with long duration
bowling, because it is anaerobic with long duration

10. which technology keeps track of heart rate during a workout?

bathroom scale
calculator
pedometer
wrist monitor