NEET 2021 Model Test Paper 8

© examsiri.com

Question : 19 of 180

Marks: +1, -0

When fluids are heated from the bottom, convection currents are produced because :-

Molecular motion of fluid becomes aligned
Molecular collisions take place within the fluid
Heated fluid becomes more dense than the cold fluid above it
Heated fluid becomes less dense than the cold fluid above it

Go to Question:

Prev Question

Next Question