NCERT Exemplar Solution for Class 7 Science Chapter-16 Water: A Precious Resource
Water is one of the most essential natural resources for life on Earth. Every living organism, including humans, animals, and plants, depends on water for survival and growth. Chapter 16, Water: A Precious Resource, helps students understand the importance of water, the causes of water scarcity, and the need for water conservation in daily life. The chapter also explains groundwater, water cycle, depletion of water resources, and methods to save water for future generations. Through real-life examples and scientific explanations, students learn how human activities affect water availability and why responsible usage of water is necessary. The NCERT Exemplar Solution for Class 7 Science helps learners understand these important environmental concepts with practical and application-based questions. By practicing the NCERT Exemplar Solution for class 7, students can strengthen conceptual clarity and improve exam preparation. Many students searching for useful NCERT solutions for class 7 prefer exemplar exercises because they provide detailed explanations and encourage logical thinking.
Find the Exercises PDF of NCERT Exemplar Solution for Class 7 Science Chapter-16 Water: A Precious Resource
Importance of Water in Daily Life
Water is required for almost every activity in life. Humans use water for drinking, cooking, cleaning, farming, and industrial purposes. Plants need water for photosynthesis and growth, while animals depend on water for survival. Since water supports all life processes, it is considered a precious natural resource.
Although most of the Earth is covered with water, only a small amount is available as fresh water suitable for human use. A large portion of water exists in oceans and seas as salty water, which cannot be used directly for drinking or agriculture. Freshwater sources include rivers, lakes, ponds, glaciers, and groundwater. The chapter explains that groundwater is stored beneath the Earth’s surface in spaces between soil and rocks. Hand pumps, tube wells, and wells are common methods of obtaining groundwater. Excessive use of groundwater for agriculture, industries, and domestic needs has led to a decline in water levels in many areas.
Students also learn about the water table, which is the upper level of groundwater. When water is continuously extracted faster than it is replenished, the water table falls. This creates water scarcity and affects farming, drinking water supply, and natural ecosystems. Rapid population growth, urbanization, deforestation, and industrialization are some major reasons for increasing water shortage. The chapter encourages students to understand the importance of careful water usage and sustainable practices.
Water Cycle and Conservation of Water
The water cycle is a natural process that maintains the balance of water on Earth. Water from oceans, lakes, rivers, and other water bodies evaporates due to the heat of the sun. The water vapor rises into the atmosphere, cools down, and forms clouds through condensation. Later, water returns to the Earth as rain, snow, or hail, completing the cycle.
Rainwater is one of the main sources of freshwater. However, uneven rainfall and improper water management often create shortages in many regions. This is why water conservation has become extremely important. The chapter introduces students to rainwater harvesting, which is an effective method of conserving water. In this process, rainwater is collected and stored for future use or allowed to seep into the ground to recharge groundwater levels. Rooftop rainwater harvesting systems are becoming popular in homes, schools, and buildings. Afforestation also helps conserve water because trees increase the ability of soil to hold water and improve groundwater recharge. Cutting trees unnecessarily can reduce rainfall and disturb the natural water cycle.
Simple habits such as turning off taps, repairing leaking pipes, using water carefully, and reusing water for gardening can help save large amounts of water. The chapter motivates students to become responsible citizens who understand the importance of conserving natural resources.
Importance of NCERT Exemplar Questions for This Chapter
The exemplar exercises of this chapter are highly useful because they focus on environmental awareness and practical understanding. Questions related to groundwater depletion, rainwater harvesting, water cycle, and conservation methods help students think critically about real-world problems.
These solutions improve conceptual understanding by explaining scientific terms and processes in simple language. Students can easily revise important topics and prepare for school examinations with confidence. Diagram-based questions related to the water cycle and groundwater also improve visual learning and scientific observation skills. The chapter develops awareness about environmental protection and sustainable living. By solving exemplar questions regularly, students understand the importance of water management and learn how small actions can contribute to conservation.
NCERT Exemplar Solution also strengthen analytical thinking and help students answer reasoning-based questions effectively. This chapter not only supports academic learning but also encourages students to adopt responsible habits in daily life for protecting water resources.