Answer:
Secondhand smoke is the combination of smoke from the burning end of a cigarette and the smoke breathed out by smokers. Secondhand smoke contains more than 7,000 chemicals. Hundreds are toxic and about 70 can cause cancer.
Explanation:
It is harmful too
Answer:
It could possibly be a Heavy period. Heavy periods can have causes that aren't due to underlying disease. Examples include regular variation among individuals, hormonal imbalance, IUD use, or medication side effects.
Answer:
The subjective symptoms that have led Jessica and Mike to presume she is pregnant are:
The missing of her period.
Clothes feeling tighter.
Breast tenderness.
Being nauseous in the morning.
Eating all the time.
Frequently going to the bathroom.
Explanation:
Amenorrhea, weight gaining, breast tenderness, morning sickness, increase in appetite and an increase in urinary frequency are subjective symptoms of pregnancy. The reason for this is that they are only noticeable by the person that experiences them or by someone that is keeping a close look at that person, like Jessica's husband. Besides, the symptoms mentioned above are subjective because there can be other things that cause them, such as premenstrual symptoms.
Answer:
The pressure waves strike the tympanum, causing it to vibrate. The mechanical energy from the moving tympanum transmits the vibrations to the three bones of the middle ear. The stapes transmits the vibrations to a thin diaphragm called the oval window, which is the outermost structure of the inner ear.
Explanation:
