In Punjab, ‘over-exploited’ refers to areas where groundwater withdrawal exceeds natural recharge. Over 75% of its blocks fall under this category due to paddy farming and excessive tube well use. Water tables have plunged, threatening agriculture and drinking water access. This indicates a criticalRead more
In Punjab, ‘over-exploited’ refers to areas where groundwater withdrawal exceeds natural recharge. Over 75% of its blocks fall under this category due to paddy farming and excessive tube well use. Water tables have plunged, threatening agriculture and drinking water access. This indicates a critical water crisis that requires immediate action through crop diversification, water-saving techniques and groundwater recharge initiatives.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
Punjab’s over-dependence on water-intensive crops like rice, along with heavy use of fertilizers and pesticides, has degraded soil and drained groundwater. This makes the land less fertile and farming unsustainable. As natural resources decline, crop yields may fall, threatening food supply not justRead more
Punjab’s over-dependence on water-intensive crops like rice, along with heavy use of fertilizers and pesticides, has degraded soil and drained groundwater. This makes the land less fertile and farming unsustainable. As natural resources decline, crop yields may fall, threatening food supply not just in Punjab but across India. Crop rotation, sustainable practices and water conservation are essential for future food security.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
Cement factories emit massive carbon dioxide due to the chemical breakdown of limestone and fuel combustion. Additionally, dust from grinding and processing pollutes the air, affecting local ecosystems and human health. Mining raw materials like limestone also damages landscapes. As demand for cemenRead more
Cement factories emit massive carbon dioxide due to the chemical breakdown of limestone and fuel combustion. Additionally, dust from grinding and processing pollutes the air, affecting local ecosystems and human health. Mining raw materials like limestone also damages landscapes. As demand for cement rises, pollution worsens, making it one of the most environmentally damaging industries globally unless cleaner methods are adopted.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
Dust from cement factories coats plant leaves, reducing their ability to absorb sunlight and grow. It alters soil chemistry, harming root systems and plant biodiversity. Animals exposed to cement dust may suffer from breathing problems or toxic exposure. Insects, especially pollinators, are also affRead more
Dust from cement factories coats plant leaves, reducing their ability to absorb sunlight and grow. It alters soil chemistry, harming root systems and plant biodiversity. Animals exposed to cement dust may suffer from breathing problems or toxic exposure. Insects, especially pollinators, are also affected. Long-term accumulation of cement particles in the environment disturbs ecological balance and threatens wildlife habitats.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
To reduce pollution, builders can use alternatives like mud bricks, rammed earth, fly ash blocks, lime plaster, bamboo and recycled materials. These materials are less energy-intensive, biodegradable and cost-effective. Fly ash, a by-product of coal plants, can replace cement partially. Such sustainRead more
To reduce pollution, builders can use alternatives like mud bricks, rammed earth, fly ash blocks, lime plaster, bamboo and recycled materials. These materials are less energy-intensive, biodegradable and cost-effective. Fly ash, a by-product of coal plants, can replace cement partially. Such sustainable options lower the environmental footprint of construction while still providing strength, insulation and durability for long-lasting buildings.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
What does OVER-EXPLOITED AREA mean in the context of Punjab?
In Punjab, ‘over-exploited’ refers to areas where groundwater withdrawal exceeds natural recharge. Over 75% of its blocks fall under this category due to paddy farming and excessive tube well use. Water tables have plunged, threatening agriculture and drinking water access. This indicates a criticalRead more
In Punjab, ‘over-exploited’ refers to areas where groundwater withdrawal exceeds natural recharge. Over 75% of its blocks fall under this category due to paddy farming and excessive tube well use. Water tables have plunged, threatening agriculture and drinking water access. This indicates a critical water crisis that requires immediate action through crop diversification, water-saving techniques and groundwater recharge initiatives.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/social-science/
See lessWhy is long-term food security threatened in Punjab?
Punjab’s over-dependence on water-intensive crops like rice, along with heavy use of fertilizers and pesticides, has degraded soil and drained groundwater. This makes the land less fertile and farming unsustainable. As natural resources decline, crop yields may fall, threatening food supply not justRead more
Punjab’s over-dependence on water-intensive crops like rice, along with heavy use of fertilizers and pesticides, has degraded soil and drained groundwater. This makes the land less fertile and farming unsustainable. As natural resources decline, crop yields may fall, threatening food supply not just in Punjab but across India. Crop rotation, sustainable practices and water conservation are essential for future food security.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/social-science/
See lessWhy is cement production considered highly polluting?
Cement factories emit massive carbon dioxide due to the chemical breakdown of limestone and fuel combustion. Additionally, dust from grinding and processing pollutes the air, affecting local ecosystems and human health. Mining raw materials like limestone also damages landscapes. As demand for cemenRead more
Cement factories emit massive carbon dioxide due to the chemical breakdown of limestone and fuel combustion. Additionally, dust from grinding and processing pollutes the air, affecting local ecosystems and human health. Mining raw materials like limestone also damages landscapes. As demand for cement rises, pollution worsens, making it one of the most environmentally damaging industries globally unless cleaner methods are adopted.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/social-science/
See lessWhat impact does cement dust have on plants and animals?
Dust from cement factories coats plant leaves, reducing their ability to absorb sunlight and grow. It alters soil chemistry, harming root systems and plant biodiversity. Animals exposed to cement dust may suffer from breathing problems or toxic exposure. Insects, especially pollinators, are also affRead more
Dust from cement factories coats plant leaves, reducing their ability to absorb sunlight and grow. It alters soil chemistry, harming root systems and plant biodiversity. Animals exposed to cement dust may suffer from breathing problems or toxic exposure. Insects, especially pollinators, are also affected. Long-term accumulation of cement particles in the environment disturbs ecological balance and threatens wildlife habitats.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/social-science/
See lessWhat are some alternatives to cement in construction?
To reduce pollution, builders can use alternatives like mud bricks, rammed earth, fly ash blocks, lime plaster, bamboo and recycled materials. These materials are less energy-intensive, biodegradable and cost-effective. Fly ash, a by-product of coal plants, can replace cement partially. Such sustainRead more
To reduce pollution, builders can use alternatives like mud bricks, rammed earth, fly ash blocks, lime plaster, bamboo and recycled materials. These materials are less energy-intensive, biodegradable and cost-effective. Fly ash, a by-product of coal plants, can replace cement partially. Such sustainable options lower the environmental footprint of construction while still providing strength, insulation and durability for long-lasting buildings.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/social-science/
See less