CTET 2 Math and Science 5 Jan 2022 Paper

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Question : 88 of 150
 
Marks: +1, -0
Which of the following questions can be considered as open ended questions(s)?
A. Why potato is a stem?
B. What happens to time period of simple pendulum if length is doubled?
C. What are the differences between stem of a rose plant and tulsi plant?
D. What would happen if all the petroleum reserves on earth are exhausted?
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