ECONOMICS
INCENTIVES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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One type of plant should have been tested
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Fewer plants should have been included in each group
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The percentage of humidity should have been kept constant
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Both groups should have been tested in the same soil type at each humidity level
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Detailed explanation-1: -The rate of transpiration can be calculated by measuring the distance travelled by an air bubble in a capillary tube over a given time. The faster the bubble moves, the greater the rate of water uptake – and so the greater the assumed rate of transpiration.
Detailed explanation-2: -We can study the rate of transpiration from the two surfaces of a leaf by comparing the loss of water vapour from the two surfaces of the leaf. Rate of transpiration can be easily demonstrated by cobalt chloride paper test. Dry cobalt chloride paper that is blue in colour turns pink when it comes in contact with water.
Detailed explanation-3: -As the relative humidity of the air surrounding the plant rises the transpiration rate decreases. It is easier for water to evaporate into dryer air than into more saturated air. Increased movement of the air around a plant will result in a higher transpiration rate.
Detailed explanation-4: -Plants growing in the same area might not show the same rate of transpiration, as each plant has its own adaptations in order to survive. Few of the adaptations are as follows: Leaf area and structure-The more the area of the lamina and broader the leaf, the rate of transpiration is more.