Question

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Answer 1

Answer:

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Explanation:

CLEANSING AGENTS

-They are the substances used to remove dirt ,bad smells etc

FOOD PRESERVATION

-It is a process by which food items such as vegetables and fruits are stored fom getting spoiled .This is done to increase life of food products

FOOD PROCESSING

-It is the transportation of agricultural products into food or of one form of food

COSMETICS

-They are used for face and body to enhance the change of appearance

ANTACIDS

-They are bases used to neutralise the acids .For example ,antacid is used to neutralise acidity in stomach

ANTIPYRETICS

- Used to reduce or prevent fever

Answer 2

Answer: a. Cleaning agents are chemicals materials used in the preparation of surfaces for cleaning and remove the contaminants that may exist on the surface of a material. Cleaning agents must have the following properties to use in the surface preparation:

Cleaning agents have to remove and completely eliminate all contaminants either polar or non-polar.

Cleaning agents should evaporate quickly and leave no residue

Cleaning agents should not damage the substrate, in the case of metals should not cause corrosion, in the case of plastics should not swell or produce stress-cracking .

Cleaning agents must comply with safety, health and environment regulations.

b. Food preservation, any of a number of methods by which food is kept from spoilage after harvest or slaughter. Such practices date to prehistoric times. Among the oldest methods of preservation are drying, refrigeration, and fermentation. Modern methods include canning, pasteurization, freezing.

c. Food processing is the transformation of agricultural products into food, or of one form of food into other forms. Food processing includes many forms of processing foods, from grinding grain to make raw flour to home cooking to complex industrial methods used to make convenience foods.

d.Any substances applied to enhance the external color or texture of the skin, e.g. lipstick, eyeshadow, eyeliner; makeup. cosmetic. A feature existing only on the surface.

e.Antacids are a class of medicines that neutralize acid in the stomach. They contain ingredients such as aluminum, calcium, magnesium, or sodium bicarbonate which act as bases (alkalis) to counteract stomach acid and make its pH more neutral.

f.antipyretic - any medicine that lowers body temperature to prevent or alleviate fever. febrifuge. medicament, medication, medicinal drug, medicine - (medicine) something that treats or prevents or alleviates the symptoms of disease.

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