Explanation

Dispersion occurs when white light passes through water droplets in the atmosphere, causing the light to spread out into its component colors (spectrum).

Each color of light bends by a different amount due to their different wavelengths, resulting in the formation of a rainbow.

Explanation

Dogs can hear a much wider range of frequencies than humans, typically from 50 Hz to 46,000 Hz.

Humans can generally hear sounds from 20 Hz to 20,000 Hz.

Explanation

The prefix deka (da) means 10¹ or 10.

It's used in the metric system (e.g., 1 dekameter = 10 meters).

Explanation

Ozone (O₃) is a triatomic molecule of oxygen, not a noble (rare) gas.

Radon, Xenon, and Krypton are all noble gases found in Group 18 of the periodic table.

Explanation

The average weight of an adult human brain is about 1300 to 1400 grams.

It makes up around 2% of the total body weight but consumes about 20% of the body's energy.

Explanation

A geostationary satellite orbits the Earth at a speed that matches the Earth's rotation, staying fixed above the same point on the Earth's surface.

This allows it to maintain a constant position relative to the Earth.

Explanation

Gears work on the principle of transmitting rotational force from one gear to another.

This helps in changing the speed, direction, or torque in a mechanical system.

Explanation

Conduction is the process through which heat is transferred from the hotter to the colder area of a conductor, like a metal rod.

It occurs when particles in the hot region collide with particles in the cooler region, transferring energy.

Explanation

An aerosol is a colloidal suspension of liquid droplets in a gas, commonly air.

Examples include fog, mist, and spray deodorants.

Explanation