The table below shows the dimensions of two colored cubes. dimensions of cubes cube side (cm) mass(g) yellow 3 135 black 2 48 which cube is denser? black, because it has less volume and less mass. yellow, because it has more volume and more mass. black, because the product of its side and mass is lower. yellow, because the product of its side and mass is higher.

The correct answer is black because the product of its side and mass is lower.

Explanation: Density of a substance is defined as the mount of matter that can be stored in a given volume.

Mathematically,

As, density is inversely proportional to the volume of the substance.

The substance will be more denser if it has less volume and it will be less denser if the volume is more.

We are given two cubes having different sides.

Volume of the cube is calculated by using the formula:

where, a = side of the cube.

Black: The side of this cube is 2 and volume will be =

Yellow: The side of this cube is 3 and volume will be =

As, the volume of black cube is less. So, this cube will be more denser.

Density of black cube:

Density of Yellow Cube:

Hence, black cube will be more denser  because the product of its side and mass is lower.

answer: ice crystals in air

the water from the water body or another source of water gets evaporated as water vapor as an effect of heat on water. these water vapor rises in the upper layers of the earth atmosphere under high atmospheric pressure. the atmospheric pressure of these water molecules starts to decrease due to the effect of cold air. the invisible water vapor condenses into visible water droplets and ice crystals.these ice crystals and water droplets being less denser than the surrounding air floats on air as clouds.