GEOGRAPHY CLASS XTERMI 20132014CH3 WATER RESOURCESQ1
GEOGRAPHY CLASS X
TERM-I (2013-2014)
CH3 WATER RESOURCES
Q1 How is fresh water obtained?
Ans Fresh water is mainly obtained from surface-runoff and ground water.
Q2 How the fresh water becomes a renewable resource?
Ans Water is continually being renewed and recharged through the hydrological cycle .
Q3 Why is the availability of water resources varies and time due to the variation in seasonal and annual precepitation. over space and time?
Ans The availability of water resources varies over space
Q4 Why does an area suffer from water scarcity although water is available in ample amount to meets the needs of people?
Ans Even if there is ample amount of water to meet the needs of the people much of it may be polluted by domestic and industrial wastes chemicals , and, pesticides fertilizers used in agriculture, thus making it hazardous for human use.
Q5 What has happened to India’s rivers especially the smaller ones?
Ans India’s rivers especially the smaller ones are turning into toxic streams due to population growth, agricultural modernization, urbanization and industrialization.
Q6 Why should we conserve water resource?
Ans We need to conserve water resourceTo safeguard ourselves from health hazards
To ensure food security
To continue our livelihoods
For productive activities
To prevent degradation of our natural ecosystems
Q7When was Bhopal lake built?
Ans Bhopal lake was built in 11th century.
Q8What is a dam?
Ans A dam is a barrier across flowing water that obstructs, directs or retards the flow ,often creating a reservoir ,lake or impoundment. Dam refers to a reservoir rather than structure.
Q9 Attempt the classification of dams on the basis of material used and height.
Ans Dams are classified according to material used and intended purpose or height— (A)On the basis of structure and the material used dams are classified(a)Timber dams (b)Embankment dams (c) Masonary dams
There are many subtypes of these dams
B) On the basis of height(a)Low dams (b) Medium dams
TERM-I (2013-2014)
CH3 WATER RESOURCES
Q1 How is fresh water obtained?
Ans Fresh water is mainly obtained from surface-runoff and ground water.
Q2 How the fresh water becomes a renewable resource?
Ans Water is continually being renewed and recharged through the hydrological cycle .
Q3 Why is the availability of water resources varies and time due to the variation in seasonal and annual precepitation. over space and time?
Ans The availability of water resources varies over space
Q4 Why does an area suffer from water scarcity although water is available in ample amount to meets the needs of people?
Ans Even if there is ample amount of water to meet the needs of the people much of it may be polluted by domestic and industrial wastes chemicals , and, pesticides fertilizers used in agriculture, thus making it hazardous for human use.
Q5 What has happened to India’s rivers especially the smaller ones?
Ans India’s rivers especially the smaller ones are turning into toxic streams due to population growth, agricultural modernization, urbanization and industrialization.
Q6 Why should we conserve water resource?
Ans We need to conserve water resourceTo safeguard ourselves from health hazards
To ensure food security
To continue our livelihoods
For productive activities
To prevent degradation of our natural ecosystems
Q7When was Bhopal lake built?
Ans Bhopal lake was built in 11th century.
Q8What is a dam?
Ans A dam is a barrier across flowing water that obstructs, directs or retards the flow ,often creating a reservoir ,lake or impoundment. Dam refers to a reservoir rather than structure.
Q9 Attempt the classification of dams on the basis of material used and height.
Ans Dams are classified according to material used and intended purpose or height— (A)On the basis of structure and the material used dams are classified(a)Timber dams (b)Embankment dams (c) Masonary dams
There are many subtypes of these dams
B) On the basis of height(a)Low dams (b) Medium dams