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Subject :NSO    Class : Class 6

Which of the following statements is incorrect?

A Motion of a vehicle on a straight road is not rectilinear motion.
B Motion of honeybees is the example of random motion.
C Cubit is the length of a forearm.
D Centigrade is not the SI unit of temperature.

Ans 1:

Class : Class 7
Kelvin is the SI unit of temperatureSo both A and D are in correct

Ans 2:

Class : Class 6
question is wrong . the question should be which of the following are correct ?

Ans 3:

Class : Class 7
D is only correct and not A. So, A is the correct answer

Ans 4:

Class : Class 7
A, B, D are correct....incorrect is C. Because forearm is the length of the arm between elbow joint and wrist joint but the cubit is length from tip of elbow to the tip of the middle finger. so forearm length is smaller than the cubit. So answer is option C

Ans 5:

Class : Class 7

Ans 6:

Class : Class 6

Ans 7:

Class : Class 7
A option is the correct answer

Ans 8:

Class : Class 7
why A is correct and not incorrect because a vehicle need not go in rectilinear path on a straight road it can go zigzag as well

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