In the water cycle, clouds are formed by which of the following processes?

Correct option is B

The correct answer is (B) condensation

Explanation:

• Condensation is the process by which water vapor (gas) in the air changes back into liquid water.

• As water vapor rises higher into the atmosphere, it cools down because the temperature decreases with altitude.

• When this vapor cools sufficiently, it transforms into tiny water droplets or ice crystals.

• These billions of tiny droplets cluster together around dust or smoke particles in the air to form clouds.

• This is a crucial stage in the Water Cycle (Hydrological Cycle) that precedes precipitation (rain, snow, or hail).



Science of water cycle

Information Booster:

• According to NCERT Class 6 Science, the presence of water vapor in the air is essential for cloud formation and the overall weather system.

• The temperature at which air becomes saturated and condensation begins is known as the Dew Point.

Additional Knowledge:evaporation (Option A) * This is the process by which liquid water from oceans, lakes, and rivers changes into water vapor due to the heat of the sun.

• It is the initial step that moves water from the Earth's surface into the atmosphere.

decomposition (Option C) * This is a biological and chemical process where organic substances are broken down into simpler matter by decomposers like bacteria and fungi.

• It plays a role in the nutrient cycle but is not a physical process of the water cycle.

melting point (Option D) * This is a physical property representing the specific temperature at which a solid substance turns into a liquid (e.g., 0°C for ice).

• It is a temperature threshold, not a cycle process like condensation or evaporation.