Answer: Crunches target the rectus abdominis and other abdominal muscles. An ab crunch machine is designed to strengthen the abdominal muscles. Wearing compression underwear can give the stomach a more toned appearance. Ab crunches are a great exercise for people looking to shed weight
Explanation:
Answer:
The correct answer is herd immunity
Explanation:
Herd immunity is a type of immunity provided by the major population which is vaccinated or immune against an infectious to some individual of their community which is not immune to that infection.
Herd immunity is generated only when most of the population is immune to that particular disease. For example, in measles, 90-95% of a population should be vaccinated against measles to provide herd immunity to the un-immune individuals. So the correct answer is herd immunity.
Answer:
Health.
Explanation:
From working out, you can understand what kind of things benefit your and other peoples health.
Answer:
False, it is preferable to use disposable needles since AIDS is a permanent disease and that is spread through the contact of blood without ebargo, the needles can be sterilized in the following way since it is not feasible to clean them with chlorine for 10 to 15 seconds. It is advisable
The best way to do this is to "BOIL IT IN WATER FOR 15 MINUTES".
Other ways, such as burning the tip with a lighter or disinfecting with alcohol, iodine ... are very little recommended. The worst is to burn the tip of the needle with a lighter, because the soot tip gets dirty and then we will introduce it under the skin with the risk of infection.
30 years ago the needles and injection syringes were boiled with water with a small metal box. A flame with alcohol was used that burned and heated a little water until it was boiled.
