Water Wonders: Delving Into Earth's Essential Resource

The video tutorial explores the natural sources of water, focusing on rain and snow, and their roles in providing water to lakes, rivers, and groundwater. It highlights the utility of rivers for irrigation and energy generation, specifically hydroelectricity. The video also includes interactive exercises to reinforce learning.

What percentage of the Earth's surface is covered with water?

• One-fourth

• Half

• Three-fourth

• Two-thirds

Which of the following is NOT a natural source of water?

• Lakes

• Tap water

• Snow

• Rain

What happens to a part of the rainwater after it falls?

• It turns into snow

• It becomes groundwater

• It stays on leaves

• It evaporates immediately

What is the main source of water for rivers, lakes, and ponds?

• Groundwater

• Seas

• Oceans

• Rain

What natural phenomenon covers trees and roofs with a white sheet during winter?

• Fog

• Snow

• Hail

• Rain

Which river is the longest in the world?

• Ganga

• Nile

• Amazon

• Yangtze

Which river is the Bhakra Nangal Dam built on?

• Sutlej

• Godavari

• Yamuna

• Ganga

What is the term for electricity generated using water?

• Hydroelectricity

• Thermal power

• Wind energy

• Solar power

Which body of water surrounds India on the south?

• Pacific Ocean

• Arabian Sea

• Bay of Bengal

• Indian Ocean

What is the term for water present under the Earth's surface?

• Lake water

• Tap water

• River water

• Groundwater