biology questions chapter health and hygiene class 8 ICSE
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a) Substance abuse, also known as drug abuse, is the use of a drug in amounts or by methods which are harmful to the individual or others.
b) EFFECTS OF ALCOHOL
1. It causes Liver cancer.
2. It causes Stomach ulcers.
EFFECTS OF SMOKING
1. It causes lung cancer.
2. It causes Asthama.
EFFECTS OF DRUGS
1. Drugs are addictive and if taken will harm the nervous and cardiovascular system.
2. It causes depression and anxiety.
c) Alcohol abuse
d) Smoking
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