Question

i. Which of the following events is NOT an example of diffusion?
A) While still some distance away, the smell of mangoes from a nearby fruit stall becomes very
evident.
B) A pail of water is toppled and water got spilled across the floor, flowing from one end to another.
C) The exchange of oxygen and carbon dioxide in the lungs’ air sacs as a person respires.
D) A blue copper sulphate crystal dissolves slowly when placed in a beaker of water without
stirring, giving a uniformly light blue solution.

Answer 1

Answer:

a pail of water is toppled and water got spilled across the floor,flowing from one end to a