Question

1 kg cotton and 1 kg sand which is more denser and why?

Answer 1

1 kg cotton is denser because cotton is light and quantity of 1 kg cotton is more than 1 kg sand so that is why cotton is more denser than sand

Answer 2

sand is more denser because
density= mass/volume

density of cotton= 1kg/ volume of cotton
density of sand=1kg/ volume of sand
here volume of cotton is more than sand because cotton occupy more space than sand

the density of cotton > the density of sand