CTET Solved Paper - UTET April 2015 Paper2
- Option : A
- Explanation : (A) N2O is also called laughing gas. It leads to loss of consciousness when inhaled.
137. Force can be defined on the basis of
- Option : B
- Explanation : (B) Newton's first law states that a body remains at rest or in motion with a constant velocity unless acted upon by any external agent called Force. Thus this law defines force.
138. Slope of the velocity-time graph gives the
- Option : C
- Explanation : (C) Acceleration is the rate of change of velocity it is given by the slope of the velocity-time graph
139. Which of the following animals has the longest life span?
- Option : D
- Explanation : (D) Tortoise has the longest life span amongst all the given animals. Their average life span is 200 years.
140. Eyes of potato are useful for
- Option : D
- Explanation : (D) Eyes of potato are useful for vegetative propagation. It is also called asexual reproduction.
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