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Question
Give reasons.
A refrigerator is used in almost every home.
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Solution
A refrigerator is used in almost every home because it prevents the spoilage of food. Refrigerator provides an optimum environment for storage of vegetables, fruits, and cooked and uncooked food. If an optimum temperature is not provided, it can lead to the growth of bacteria and fungi, thus leading to spoilage of food.
RELATED QUESTIONS
Match the organisms in Column A with their action in Column B.
| A | B | ||
| (i) | Bacteria | (a) | Fixing Nitrogen |
| (ii) | Rhizobium | (b) | Setting of curd |
| (iii) | Lactobacillus | (c) | Baking of bread |
| (iv) | Yeast | (d) | Causing Malaria |
| (v) | A protozoan | (e) | Causing Cholera |
| (vi) | A Virus | (f) | Causing AIDS |
| (g) | Producing antibodies |
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