Manipur Board Class7 Social Science Chapter 4 Water Question Answer Solution. We have uploaded this page so that students of Manipur State Board can learn online by their smartphone / laptop or other devices.
Manipur Board Class 7 Social Science Chapter 4: Water
- Board – Board of Secondary Education, Manipur.
- Class – 7
- Subject – Social Science
- Topic – Exercise Solution / Notes / Question Answer.’
1.) Answer the following questions in a sentence :
(a) Why is the earth known as the watery planet ?
Ans- The water bodies form a sphere of water called the hydrosphere and Water makes 71% of the earth’s surface and hence it is known as a watery planet.
(b) Why does Manipur is prone area of frequent floods during rainy season?
Ans- Owing to its geo-climatic, geological and physical features, Manipur is vulnerable to all-major nutural hazards (Droughts, Floods, Cyclones, Earthquakes, Landslides, Mudflows, Forests Fires etc.)
(c) What is disaster?
Ans – Disaster is a serious disruption, occuring over a relatively short time involving widespread human, material, economic or environmental losses.
2.) Answer the questions in about 100 words each :
(a) Explain hydrological cycle or water cycle.
Ans – Water evaporates from the oceans and other smaller water bodies and reaches the atmosphere as water vapour. On cooling, this water vapour turns into water droplets and falls to earth as rain. The rain water runs into the sea from where it gets evaporated. Thus it completes a cycle. This is known as hydrological cycle or water cycle. Hydrological cycle describes the movement of water.
(b) In what ways are the tides and currents useful to man ?
Ans- Tides and Current helps in generation of hydroelectricity , agriculture , fishing , navigation and other allied activities for humans.
(c) Explain disaster management.
Ans- The process of organization and management that is implemented before, during or after any type of catastrophic event takes place is disaster management. The management of nutural hazards involve disaster research and predictions of the history of the prone area. Prevention, preparation, relief and recovery are four essential parts to disaster management.
3.) Choose the correct answer :
(i) The salinity of ocean is high in area of- (b) High Evaporation.
(ii) Natural Disaster is caused by- (c) Deforestation.
(iii) The deepest part of the ocean is found in- (d) Pacific Ocean.
4.) Match the two columns :
Column – A Column – B
(a) Busiest ocean (1) Atlantic Ocean
(b) Sunda Trench (2) Indian Ocean
(c) Largest ocean (3) Pacifc Ocean
(d) Smallest ocean (4) Arctic Ocean