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Question (31)

QN0010557

Which statement best explains why food preservation is important?

(A) It helps food spoil quickly
(B) It helps food remain usable for a longer time
(C) It changes food into metal
(D) It removes nutrients from all foods

Correct Answer: B

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Question (32)

QN0010558

A child leaves two slices of bread. One is sealed in an airtight pack and the other is left open. Which slice is more likely to spoil first?

(A) Airtight slice
(B) Open slice
(C) Both equally
(D) Neither slice

Correct Answer: B

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Question (33)

QN0010559

Which preservation method mainly works by blocking air?

(A) Drying chillies
(B) Refrigeration
(C) Oiling pickles
(D) Freezing water

Correct Answer: C

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Question (34)

QN0010560

What is the most reasonable conclusion from Disha’s investigations?

(A) Food can never be preserved
(B) Different preservation methods stop microbes in different ways
(C) Only oil can preserve food
(D) Only refrigerators preserve food

Correct Answer: B

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Question (35)

QN0010561

Which food item from the chapter remained good even after two months because it was covered with oil?

(A) Bread
(B) Uttapam
(C) Mango pickle
(D) Tomato slices

Correct Answer: C

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Question (36)

QN0010562

A student wants to carry food on a two-day trip. Which choice is least likely to spoil quickly?

(A) Sun-dried chilli powder
(B) Fresh cut watermelon kept open
(C) Warm milk kept outside
(D) Cooked rice left uncovered

Correct Answer: A

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Question (37)

QN0010563

Which example belongs to India’s traditional food preservation practices mentioned in the chapter?

(A) Preserving food in airtight factory cans only
(B) Drying chillies in the Sun for yearly use
(C) Using robots to store food
(D) Vacuum chambers in laboratories only

Correct Answer: B

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Question (38)

QN0010564

A food item contains plenty of moisture and is kept in warm air. Based on the chapter, what is the most likely outcome?

(A) Microbial growth will be encouraged
(B) Microbial growth will stop completely
(C) Food will become ghee
(D) Food will turn into metal

Correct Answer: A

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Question (39)

QN0010565

Which statement correctly compares drying and refrigeration?

(A) Both increase microbial growth
(B) Drying removes moisture, while refrigeration lowers temperature
(C) Drying adds oil, while refrigeration adds water
(D) Both work only by blocking air

Correct Answer: B

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Question (40)

QN0010566

Detective Disha’s final discovery about microbes was that ______.

(A) All microbes are harmful
(B) Microbes exist only in food
(C) Some microbes spoil food while some help make food and aid digestion
(D) Microbes can be seen without any instrument

Correct Answer: C

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Question (31)

Which statement best explains why food preservation is important?

Explanation:

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Question (32)

A child leaves two slices of bread. One is sealed in an airtight pack and the other is left open. Which slice is more likely to spoil first?

Explanation:

Link:

Question (33)

Which preservation method mainly works by blocking air?

Explanation:

Link:

Question (34)

What is the most reasonable conclusion from Disha’s investigations?

Explanation:

Link:

Question (35)

Which food item from the chapter remained good even after two months because it was covered with oil?

Explanation:

Link:

Question (36)

A student wants to carry food on a two-day trip. Which choice is least likely to spoil quickly?

Explanation:

Link:

Question (37)

Which example belongs to India’s traditional food preservation practices mentioned in the chapter?

Explanation:

Link:

Question (38)

A food item contains plenty of moisture and is kept in warm air. Based on the chapter, what is the most likely outcome?

Explanation:

Link:

Question (39)

Which statement correctly compares drying and refrigeration?

Explanation:

Link:

Question (40)

Detective Disha’s final discovery about microbes was that ______.

Explanation:

Link:

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