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Grade 7

ASSET Question-A-Day | 22 February 2019

Grade 7 | Science

A potometer is made using a glass U-tube, filled with water and mounted on a stand. In one end of the U-tube, a shoot of a plant is placed and in the other end, a pipette is placed which can be used to measure the decrease in water level. 
The diagram below shows the potometer being used in an experiment. 
- Both the potometers are placed in well-lit rooms.
- All the other conditions except for the conditions mentioned are the same for both potometers.

For which of these purposes is a potometer likely to be used?
A
to measure the rate of transpiration
B
to measure the rate of photosynthesis
C
to estimate how long a plant can survive without roots
D
 to estimate the growth of plants under different conditions

Yesterday's Question | Maths

Shown below is a solid.

Which of the following shows the three views of the solid?

A
B
C
D

Correct Answer: A