D. sleep habits
that is the only one that is not based on outside factors
I put the answer in the image attached
Answer:
When you don't have proper body alignment, then the curl ups could be too easy or too hard.
This could also cause injury, due to improper stretching of the muscles.
Some tips would be: (<em><u>You may choose any two of them</u></em>)
1.) keep your feet about 12 inches/1 foot aways from your bottom.
2.) Stretch properly before doing curl ups to prevent injury.
3.) Lay on something soft to prevent spine aching/injury.
4.) Instead of putting your hands behind your head, put them in an X shape across your chest. This can prevent neck injury or aching.
5.) Don't let your feet lift off the ground, have a friend hold them down. Never put gym weights on them, as that can cause injury to your feet.
I will complete the statement by filling the blank with the best possible answer i can come up with.
Injection, drainage or Aspiration guidlines would be located in the nervous system subheadings. I hope this answer will help you with your Q's.
TRUE.....Improper handling of waste water is the main reason behind water getting polluted. Sewage is drained off in large quantities to rivers. It slows down the process of dilution of constituents of water; this in turn stagnates the river. It may also result into spread of diseases like diarrhea, typhoid, etc
