Practice Questions CBSE - Science Class 10 (2023 Boards)

Question 1

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Question 2

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Question 3 Important

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Question 4 Important

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Question 5 Important

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Question 6

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Question 7 Important

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Question 8

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Question 9 Important

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Question 10

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Question 11

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Question 12 Important left arrow to signify that you are on this page You are here

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Question 13 Important

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Question 14

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Question 15 Important

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Question 16

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Question 17 [Assertion Reasoning] Important

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Question 18 [Assertion Reasoning] Important

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Question 19 [Assertion Reasoning] Important

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Question 20 [Assertion Reasoning]

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Question 21 (Choice 1) Important

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Question 21 (Choice 2)

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Question 22 Important

down arrow in sibling posts in Teachoo

Question 23

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Question 24 Important

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Question 25 (Choice 1)

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Question 25 (Choice 2)

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Question 26 Important

down arrow in sibling posts in Teachoo

Question 27

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Question 28 Important

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Question 29 (Choice 1)

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Question 29 (Choice 2) Important

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Question 30 Important

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Question 31 (a)

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Question 31 (b) Important

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Question 32 (Choice 1)

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Question 32 (Choice 2) Important

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Question 33 (a)

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Question 33 (b)

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Question 33 (c) Important

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Question 34 (a) - Choice 1

down arrow in sibling posts in Teachoo

Question 34 (b) - Choice 1 Important

down arrow in sibling posts in Teachoo

Question 34 (c) - Choice 1

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Question 34 (a) - Choice 2 Important

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Question 34 (b) - Choice 2]

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Question 34 (c) - Choice 2 Important

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Question 35 (a) - Choice 1 Important

down arrow in sibling posts in Teachoo

Question 35 (b) - Choice 1 Important

down arrow in sibling posts in Teachoo

Question 35 (c) - Choice 1

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Question 35 (a) - Choice 2

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Question 35 (b) - Choice 2 Important

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Question 35 (c) - Choice 2

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Question 36 Important

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Question 37 (a) - Choice 1 [Case Based]

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Question 37 (b) i - Choice 2 [Case Based] Important

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Question 37 (b) ii - Choice 2 [Case Based] Important

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Question 38 (a) - Choice 1 [Case Based]

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Question 38 (b) - Choice 1 [Case Based] Important

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Question 38 (c) - Choice 1 [Case Based]

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Question 39 (a) - Choice 1 [Case Based] Important

down arrow in sibling posts in Teachoo

Question 39 (b) - Choice 1 [Case Based]

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Question 39 (c) - Choice 1 [Case Based]

down arrow in sibling posts in Teachoo

Question 39 (d) - Choice 1 [Case Based] Important

down arrow in sibling posts in Teachoo

Question 39 (d) - Choice 2 [Case Based] Important

down arrow in sibling posts in Teachoo

The time duration from the sowing of seeds to the harvest of crops is critical for agricultural purposes. Based on the information above, select a reason why farmers prefer vegetative propagation for growing crops.

A. Seedless crops can also be reproduced.

B. Offspring plants are genetically similar to parent plants.

C. Plants grown by vegetative propagation bear fruits earlier.

D. Vegetative propagation does not depend on external agents of pollination.

 

Answer:

  • Plants grown by vegetative propagation bear fruits earlier. 
  • Vegetative propagation is a type of asexual reproduction
  • This is because plants produced by vegetative propagation are exact copies of their parent
  • They take less time to grow and mature hence, they bear fruits faster than those produced by sexual reproduction.

Vegetative Propagation - teachoo.jpg

Therefore the correct answer is C.  

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Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 14 years and a teacher from the past 18 years. He teaches Science, Economics, Accounting and English at Teachoo