Answer:
Tidal volume is the volume of gas that is moved in and out of the lungs per breath. The normal tidal volume is 6 to 8 ml/kg, regardless of age.
Explanation:
The barrier method is used to prevent the male sperm from traveling to the female egg. Some common forms of birth control that is considered the barrier method are male condoms, female condemns, foams and diaphragms.
Answer:
B. more difficult when your close friends smoke.
Explanation:
Especially when one is younger and/or has been with your friends in a long term, it may be "more" pressuring to do things with your long-time close friend, even if it is detrimental to your health. B, is the best answer choice for this question.
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