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Chapter Analysis
Beginner8 pages • EnglishQuick Summary
The chapter 'Water' in Class 7 Geography explores the vital components and cycles of water on Earth. It describes the water cycle, including evaporation, condensation, and precipitation. The chapter further discusses ocean movements such as tides, waves, and currents, emphasizing their causes and effects. The significance of water conservation and its distribution across Earth are highlighted, showing why water, despite its abundance, is a scarce and precious resource.
Key Topics
- •Water cycle
- •Ocean currents
- •Tides and waves
- •Distribution of water
- •Importance of water conservation
- •Salinity of ocean water
Learning Objectives
- ✓Understand the water cycle and its components
- ✓Describe the movement of ocean water and its influence
- ✓Identify factors affecting ocean currents
- ✓Recognize the importance of conserving freshwater
- ✓Comprehend the distribution and scarcity of water resources
Questions in Chapter
What is precipitation?
Page 37
What is water cycle?
Page 37
What are the factors affecting the height of the waves?
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Which factors affect the movement of ocean water?
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What are tides and how are they caused?
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What are ocean currents?
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Give reasons why ocean water is salty.
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Give reasons why the quality of water is deteriorating.
Page 38
The process by which water continually changes its form and circulates between oceans, atmosphere, and land
Answer: Water cycle
Page 38
Generally the warm ocean currents originate near
Answer: Equator
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The rhythmic rise and fall of ocean water twice in a day is called
Answer: Tide
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Match the following: Caspian Sea, Tide, Tsunami, Ocean currents
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The name of one river is hidden in each of the sentences below. Spot it.
Page 38
Additional Practice Questions
Explain the significance of the water cycle in maintaining life on Earth.
easyAnswer: The water cycle is crucial as it regulates climate, replenishes freshwater resources, supports plant growth, and sustains all forms of life by continuously recycling water between the atmosphere, land, and oceans.
How do ocean currents influence the climate of coastal regions?
mediumAnswer: Ocean currents regulate climate by transferring heat from the equator to the poles. Warm currents can raise temperatures in coastal areas, while cold currents can lower them, affecting weather patterns and marine life.
Discuss the impact of tides on human activities.
mediumAnswer: Tides are vital for navigation, fishing, and electricity generation. High tides help ships reach harbors, draw fish closer to the shore, and can be harnessed for tidal energy, while low tides can expose fishing and mussel beds.
What are some effective methods to conserve water at home and in schools?
easyAnswer: Water can be conserved by fixing leaks, installing water-saving fixtures, collecting rainwater, using water-efficient appliances, and promoting awareness about turning off taps when not in use.
Analyze the consequences of water scarcity on global health and food security.
hardAnswer: Water scarcity can lead to inadequate sanitation, increased disease burden, reduced agricultural productivity, food shortages, and economic instability, especially in arid and developing regions.