Which of the following systems of units is not based on units of mass,length,and time alone?

Which of the following physical quantities can be used to express temperature?

One $\mathring{A}$ is equal to:

$1 \text{ kilowatt hour} = \dots \text{ joules}$

Write a note on $SI$ (Systeme Internationale) units.

Explain this statement clearly: "To call a dimensional quantity 'large' or 'small' is meaningless without specifying a standard for comparison". In view of this,reframe the following statements wherever necessary:
$(a)$ atoms are very small objects
$(b)$ a jet plane moves with great speed
$(c)$ the mass of Jupiter is very large
$(d)$ the air inside this room contains a large number of molecules
$(e)$ a proton is much more massive than an electron
$(f)$ the speed of sound is much smaller than the speed of light.