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Question (1)

QN0010527

Disha found coloured patches on the uttapam left in her lunch box for three days. These coloured patches were called ______.

(A) Crystals
(B) Mould
(C) Dust
(D) Salt

Correct Answer: B

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Question (2)

QN0010528

Which instrument is needed to see most microbes?

(A) Telescope
(B) Binoculars
(C) Microscope
(D) Magnifying glass

Correct Answer: C

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Question (3)

QN0010529

According to the lesson, microbes are found in ______.

(A) Only soil
(B) Only water
(C) Only air
(D) Soil, water, air, plants, animals and inside us

Correct Answer: D

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Question (4)

QN0010530

What is food spoilage?

(A) Making food tastier
(B) A change in food caused by microbes that makes it unfit to eat
(C) Drying food in sunlight
(D) Storing food in a refrigerator

Correct Answer: B

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Question (5)

QN0010531

Which statement best defines microbes as given in the chapter?

(A) Tiny living things seen with a microscope
(B) Tiny stones found in soil
(C) Invisible gases in air
(D) Small insects on plants

Correct Answer: A

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Question (6)

QN0010532

Bread was left on a balcony for two days and developed coloured patches. Which condition most likely helped the microbes grow?

(A) Absence of air
(B) Absence of moisture
(C) Suitable moisture, air and temperature
(D) Complete darkness only

Correct Answer: C

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Question (7)

QN0010533

Microbes need moisture, air and the right temperature to grow. If moisture is removed, what will happen?

(A) Microbes grow faster
(B) Microbes stop growing easily
(C) Food becomes sweeter
(D) Air disappears

Correct Answer: B

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Question (8)

QN0010534

Chillies are dried in the Sun mainly because drying removes ______.

(A) Colour
(B) Taste
(C) Moisture
(D) Seeds

Correct Answer: C

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Question (9)

QN0010535

A family dries red chillies before storing them for a year. Which reason explains why this method works?

(A) Sunlight adds water
(B) Drying removes moisture needed by microbes
(C) Drying adds oil to chillies
(D) Drying removes air from Earth

Correct Answer: B

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Question (10)

QN0010536

Tomatoes are sliced and kept in sunlight for several days. Which change is most likely to occur first?

(A) They absorb more water
(B) They become drier
(C) They turn into curd
(D) They become frozen

Correct Answer: B

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Question (1)

Disha found coloured patches on the uttapam left in her lunch box for three days. These coloured patches were called ______.

Explanation:

Link:

Question (2)

Which instrument is needed to see most microbes?

Explanation:

Link:

Question (3)

According to the lesson, microbes are found in ______.

Explanation:

Link:

Question (4)

What is food spoilage?

Explanation:

Link:

Question (5)

Which statement best defines microbes as given in the chapter?

Explanation:

Link:

Question (6)

Bread was left on a balcony for two days and developed coloured patches. Which condition most likely helped the microbes grow?

Explanation:

Link:

Question (7)

Microbes need moisture, air and the right temperature to grow. If moisture is removed, what will happen?

Explanation:

Link:

Question (8)

Chillies are dried in the Sun mainly because drying removes ______.

Explanation:

Link:

Question (9)

A family dries red chillies before storing them for a year. Which reason explains why this method works?

Explanation:

Link:

Question (10)

Tomatoes are sliced and kept in sunlight for several days. Which change is most likely to occur first?

Explanation:

Link:

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