PL HELPPP ME 1. A sign of a physiological dependency would be:
A. getting headaches when going without a certain substance.
B. needing a substance to socialize.
C. having to use a substance before going to work.
D. All of the choices are correct.

2. Which of the following statements about tobacco use is not true?
A. Nicotine narrows blood vessels and puts added strain on the heart.
B. Smoking improves athletic performance.
C. Smoking can wreck lungs.
D. Nicotine in smokeless tobacco is addictive.

3. The leading cause of death among smokers is:
A. cancer.
B. lung disease.
C. suffocation.
D. heart attack.

4. Which of the following statements about sidestream smoke is not true?
A. It is the smoke that a smoker inhales from a cigarette.
B. It is dirtier and has a different chemical makeup than mainstream smoke.
C. It is the smoke that people around the smoker inhale.
D. It is the smoke that results from the burning end of a cigarette.

5. Which of the following choices is a benefit of using medication to help someone quit smoking?
A. It helps lessen the urge to smoke.
B. It can double the chance of quitting.
C. It can help someone quit for good.
D. All of these choices are correct.

6. The number one drug of choice for young people is:
A. alcohol.
B. cocaine.
C. heroin.
D. tobacco.

7. According to the text, a standard drink is one:
A. 12-ounce bottle of beer.
B. 5-ounce glass of wine.
C. 1.5 ounce shot of 80-proof distilled spirits.
D. All of these choices are correct.

8. Alcoholic hepatitis is:
A. scarring of the liver.
B. a sexually transmitted disease.
C. inflammation of the liver.
D. None of these choices are correct.

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Explanation:

1) D 2)B 3)D 4)D 5)D 6)A 7)D 8)C

Explanation:

Explanation is too long but if you want a more in-depth answer I could elaborate in the comment section

take five to 10 minutes to warm up and cool down properly.

plan to start slowly and boost your activity level gradually unless you are already exercising frequently and vigorously.

be aware that training too hard or too often can cause overuse injuries like stress fractures, stiff or sore joints and muscles, and inflamed tendons and ligaments. sports prompting repetitive wear and tear on certain parts of your body — such as swimming (shoulders), jogging (knees, ankles, and feet), tennis (elbows) — are often overuse culprits, too. a mix of different kinds of activities and sufficient rest is safer.

listen to your body. hold off on exercise when you're sick or feeling very fatigued. cut back if you cannot finish an exercise session, feel faint after exercise or fatigued during the day, or suffer persistent aches and pains in joints after exercising.

if you stop exercising for a while, drop back to a lower level of exercise initially. if you're doing strength training, for example, lift lighter weights or do fewer reps or sets.

for most people, simply drinking plenty of water is sufficient. but if you're working out especially hard or doing a marathon or triathlon, choose drinks that replace fluids plus essential electrolytes.

choose clothes and shoes designed for your type of exercise. replace shoes every six months as cushioning wears out.

for strength training, good form is essential. initially use no weight, or very light weights, when learning the exercises. never sacrifice good form by hurrying to finish reps or sets, or struggling to lift heavier weights.

exercising vigorously in hot, humid conditions can lead to serious overheating and dehydration. slow your pace when the temperature rises above 70°f. on days when the thermometer is expected to reach 80°f, exercise during cooler morning or evening hours or at an air-conditioned gym. watch for signs of overheating, such as headache, dizziness, nausea, faintness, cramps, or palpitations.

dress properly for cold-weather workouts to avoid hypothermia. depending on the temperature, wear layers you can peel off as you warm up. don't forget gloves.