Question

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what are the four types of substances found in saliva?
alcohol, caffeine, nicotine, and thc
oxygen, carbon dioxide, nitrogen, and hydrogen
proteins, lipids, carbohydrates, and minerals
sugar, acid, mucus, and salt
water, electrolytes, enzymes, and other organic and inorganic substances

Explanation:

Saliva is composed of water (the main component), electrolytes (like sodium, potassium), enzymes (such as amylase), and other organic and inorganic substances. Alcohol, caffeine, nicotine, and THC are substances that can be detected in saliva but are not the main types of substances that make up saliva. Oxygen, carbon dioxide, nitrogen, and hydrogen are gases in the air. Proteins, lipids, carbohydrates, and minerals are major macromolecules and elements in the body but not the main components of saliva. Sugar, acid, mucus, and salt - mucus is present but sugar is not a main component in the way described here.

Answer:

Water, electrolytes, enzymes, and other organic and inorganic substances.