Question 21
Question 21 of 40

Question image for Q21
You can solve this MCQ to see its answer, but your attempt won't be logged unless you login
No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct

Topics Tested

Explain convection in liquids and gases in terms of density changes and describe experiments to illustrate convection

Describe, qualitatively, how the pressure beneath the surface of a liquid changes with depth and density of the liquid