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Test: Evaporation And Condensation - Class 9


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5 Questions MCQ Test Science Class 9 - Test: Evaporation And Condensation

Test: Evaporation And Condensation for Class 9 2023 is part of Science Class 9 preparation. The Test: Evaporation And Condensation questions and answers have been prepared according to the Class 9 exam syllabus.The Test: Evaporation And Condensation MCQs are made for Class 9 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Evaporation And Condensation below.
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Test: Evaporation And Condensation - Question 1

Transpiration from the leaves of trees is an example of:

Detailed Solution for Test: Evaporation And Condensation - Question 1

Transpiration is the process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere. Transpiration is essentially evaporation of water from plant leaves.

Test: Evaporation And Condensation - Question 2

Natural phenomenon like fog, mist or frost are caused due to:

Detailed Solution for Test: Evaporation And Condensation - Question 2

Fog, mist or frost are due to condensation, depending upon the physical conditions of atmosphere.

Test: Evaporation And Condensation - Question 3

Which statement regarding the effect of humidity on evaporation is correct?

Detailed Solution for Test: Evaporation And Condensation - Question 3

Humidity refers to presence of vapour in air. So, if humidity increases then the rate of evaporation decreases as vapours in air are already present.

Test: Evaporation And Condensation - Question 4

Evaporation of a liquid takes place at temperature:

Detailed Solution for Test: Evaporation And Condensation - Question 4

 

Correct option is D. Evaporation of a liquid takes place at temperature below the boiling point

Test: Evaporation And Condensation - Question 5

 Evaporation occurs at the surface of a liquid because the particles at the surface:

Detailed Solution for Test: Evaporation And Condensation - Question 5

Correct answer is A. 
Evaporation occurs at the surface of a liquid because the particles at the surface have sufficient energy to break through the forces of attraction between them.

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