(a) Five things done to conserve natural resources are: • Used energy efficient electrical appliances. • Used only as much of electricity as was required. • Kept the water tap closed while brushing the teeth. • Convinced mother to cook the food in a solar cooker. • Used public transport for school iRead more
(a) Five things done to conserve natural resources are:
• Used energy efficient electrical appliances.
• Used only as much of electricity as was required.
• Kept the water tap closed while brushing the teeth.
• Convinced mother to cook the food in a solar cooker.
• Used public transport for school instead of parent’s car.
(b) Five things done to increase the pressure on natural resources:
• Went to school on a bike instead of cycle.
• Forgot to switch off fan while going out
• Wasted food.
• Used more paper than required for printing on computer.
• Wastage of water resource.
• Save electricity. • Do not waste food. • Save water. • Use cooking gas instead of wood for cooking. • Observe the principle of three R's (Reduce, Recycle and Reuse). For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-15/
• Save electricity.
• Do not waste food.
• Save water.
• Use cooking gas instead of wood for cooking.
• Observe the principle of three R’s (Reduce, Recycle and Reuse).
(a) Forests and Wildlife • Take part in community activities with focus on conserving forests and wildlife. • As a tourist follow all principles of conservation. • Help organisations engaged in conservation of forests and wildlife (b) Water Resources • Save water in domestic use. • Install a systemRead more
(a) Forests and Wildlife
• Take part in community activities with focus on conserving forests and wildlife.
• As a tourist follow all principles of conservation.
• Help organisations engaged in conservation of forests and wildlife
(b) Water Resources
• Save water in domestic use.
• Install a system for rainwater harvesting.
(c) Coal and Petroleum
• Save electricity whenever required.
• Install electric gadgets that use less power.
• Use public transport.
• Grow trees along the boundary wall. • Grow shrubs and small plants on the sides of internal road and around the playground. • Harvest water from rooftop to be utilised for watering the plants. • Arrange awareness programmes among students through poster exhibition and seminars. • Avoid wastage ofRead more
• Grow trees along the boundary wall.
• Grow shrubs and small plants on the sides of internal road and around the playground.
• Harvest water from rooftop to be utilised for watering the plants.
• Arrange awareness programmes among students through poster exhibition and seminars.
• Avoid wastage of water and paper should be recycled for handicraft purposes.
• Segregate wastes into recyclable and non-recyclable. • Use water and electricity judiciously. • Do not waste food. • Reuse newspapers and plastic items. • Keep windows open to prevent less use of fan. • Follow three R's (Reduce, Recycle and Reuse).
• Segregate wastes into recyclable and non-recyclable.
• Use water and electricity judiciously.
• Do not waste food.
• Reuse newspapers and plastic items.
• Keep windows open to prevent less use of fan.
• Follow three R’s (Reduce, Recycle and Reuse).
• By minimising the use of disposal items and promoting the use of recycled articles. • Separating biodegradable and non-biodegradable waste before dumping them. • Recycling the non-biodegradable waste material. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-1Read more
• By minimising the use of disposal items and promoting the use of recycled articles.
• Separating biodegradable and non-biodegradable waste before dumping them.
• Recycling the non-biodegradable waste material.
Ozone (O3) is a molecule formed by three atoms of oxygen. Ozone, is a deadly poison. However, at the higher levels of the atmosphere, ozone performs an essential function. It shields the surface of the earth from ultraviolet (UV) radiation from the Sun. This radiation is highly damaging to organismsRead more
Ozone (O3) is a molecule formed by three atoms of oxygen. Ozone, is a deadly poison. However, at the higher levels of the atmosphere, ozone performs an essential function. It shields the surface of the earth from ultraviolet (UV) radiation from the Sun. This radiation is highly damaging to organisms, for example, it is known to cause skin cancer, cataract and damage the immune system in human beings. It also destroys plants and reduces photosynthesis process.
Decomposers are microorganisms that act on dead and decaying bodies of producers and consumers and break them into simple inorganic compounds. They absorb some of the substances and release the rest into the environment to be recycled and to be used in future by producers. Thus, decomposers have a kRead more
Decomposers are microorganisms that act on dead and decaying bodies of producers and consumers and break them into simple inorganic compounds. They absorb some of the substances and release the rest into the environment to be recycled and to be used in future by producers. Thus, decomposers have a key role in the cycling of material in the biosphere and provide the raw materials to the producers. So in this way they make the soil fertile.
• Chemicals like BHC and DDT induce carcinoma (muscle cancer) and growth of tumours. • Handling of waste materials may cause skin, respiratory and intestinal infections. • Non-biodegradable substances do not decompose easily so it produces land and water pollution. For more answers visit to website:Read more
• Chemicals like BHC and DDT induce carcinoma (muscle cancer) and growth of tumours.
• Handling of waste materials may cause skin, respiratory and intestinal infections.
• Non-biodegradable substances do not decompose easily so it produces land and water pollution.
• During decomposition process of biodegradable substances foul smell and some harmful gases are released which make problem for the nearby living person. • During decomposition it provide a breeding ground for mosquitoes, insects and microbes responsible for diseases like cholera, diarrhoea, etc. FRead more
• During decomposition process of biodegradable substances foul smell and some harmful gases are released which make problem for the nearby living person.
• During decomposition it provide a breeding ground for mosquitoes, insects and microbes responsible for diseases like cholera, diarrhoea, etc.
List five things you have done over the last one week in favor of natural resources.
(a) Five things done to conserve natural resources are: • Used energy efficient electrical appliances. • Used only as much of electricity as was required. • Kept the water tap closed while brushing the teeth. • Convinced mother to cook the food in a solar cooker. • Used public transport for school iRead more
(a) Five things done to conserve natural resources are:
• Used energy efficient electrical appliances.
• Used only as much of electricity as was required.
• Kept the water tap closed while brushing the teeth.
• Convinced mother to cook the food in a solar cooker.
• Used public transport for school instead of parent’s car.
(b) Five things done to increase the pressure on natural resources:
• Went to school on a bike instead of cycle.
• Forgot to switch off fan while going out
• Wasted food.
• Used more paper than required for printing on computer.
• Wastage of water resource.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-15/
What can you as an individual do to reduce your consumption of the various natural resources?
• Save electricity. • Do not waste food. • Save water. • Use cooking gas instead of wood for cooking. • Observe the principle of three R's (Reduce, Recycle and Reuse). For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-15/
• Save electricity.
• Do not waste food.
• Save water.
• Use cooking gas instead of wood for cooking.
• Observe the principle of three R’s (Reduce, Recycle and Reuse).
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-15/
How can you as an individual contribute or make a difference to the management of (a) forests and wildlife, (b) water resources and (c) coal and petroleum?
(a) Forests and Wildlife • Take part in community activities with focus on conserving forests and wildlife. • As a tourist follow all principles of conservation. • Help organisations engaged in conservation of forests and wildlife (b) Water Resources • Save water in domestic use. • Install a systemRead more
(a) Forests and Wildlife
• Take part in community activities with focus on conserving forests and wildlife.
• As a tourist follow all principles of conservation.
• Help organisations engaged in conservation of forests and wildlife
(b) Water Resources
• Save water in domestic use.
• Install a system for rainwater harvesting.
(c) Coal and Petroleum
• Save electricity whenever required.
• Install electric gadgets that use less power.
• Use public transport.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-15/
Can you suggest some changes in your school which would make it environment friendly?
• Grow trees along the boundary wall. • Grow shrubs and small plants on the sides of internal road and around the playground. • Harvest water from rooftop to be utilised for watering the plants. • Arrange awareness programmes among students through poster exhibition and seminars. • Avoid wastage ofRead more
• Grow trees along the boundary wall.
• Grow shrubs and small plants on the sides of internal road and around the playground.
• Harvest water from rooftop to be utilised for watering the plants.
• Arrange awareness programmes among students through poster exhibition and seminars.
• Avoid wastage of water and paper should be recycled for handicraft purposes.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-15/
What changes would you suggest in your home in order to be environment-friendly?
• Segregate wastes into recyclable and non-recyclable. • Use water and electricity judiciously. • Do not waste food. • Reuse newspapers and plastic items. • Keep windows open to prevent less use of fan. • Follow three R's (Reduce, Recycle and Reuse).
• Segregate wastes into recyclable and non-recyclable.
See less• Use water and electricity judiciously.
• Do not waste food.
• Reuse newspapers and plastic items.
• Keep windows open to prevent less use of fan.
• Follow three R’s (Reduce, Recycle and Reuse).
How can you help in reducing the problem of waste disposal? Give any two methods.
• By minimising the use of disposal items and promoting the use of recycled articles. • Separating biodegradable and non-biodegradable waste before dumping them. • Recycling the non-biodegradable waste material. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-1Read more
• By minimising the use of disposal items and promoting the use of recycled articles.
• Separating biodegradable and non-biodegradable waste before dumping them.
• Recycling the non-biodegradable waste material.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-15/
What is ozone and how does it affect any ecosystem?
Ozone (O3) is a molecule formed by three atoms of oxygen. Ozone, is a deadly poison. However, at the higher levels of the atmosphere, ozone performs an essential function. It shields the surface of the earth from ultraviolet (UV) radiation from the Sun. This radiation is highly damaging to organismsRead more
Ozone (O3) is a molecule formed by three atoms of oxygen. Ozone, is a deadly poison. However, at the higher levels of the atmosphere, ozone performs an essential function. It shields the surface of the earth from ultraviolet (UV) radiation from the Sun. This radiation is highly damaging to organisms, for example, it is known to cause skin cancer, cataract and damage the immune system in human beings. It also destroys plants and reduces photosynthesis process.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-15/
What is the role of decomposers in the ecosystem?
Decomposers are microorganisms that act on dead and decaying bodies of producers and consumers and break them into simple inorganic compounds. They absorb some of the substances and release the rest into the environment to be recycled and to be used in future by producers. Thus, decomposers have a kRead more
Decomposers are microorganisms that act on dead and decaying bodies of producers and consumers and break them into simple inorganic compounds. They absorb some of the substances and release the rest into the environment to be recycled and to be used in future by producers. Thus, decomposers have a key role in the cycling of material in the biosphere and provide the raw materials to the producers. So in this way they make the soil fertile.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-15/
Give any two ways in which non-biodegradable substances would affect the environment.
• Chemicals like BHC and DDT induce carcinoma (muscle cancer) and growth of tumours. • Handling of waste materials may cause skin, respiratory and intestinal infections. • Non-biodegradable substances do not decompose easily so it produces land and water pollution. For more answers visit to website:Read more
• Chemicals like BHC and DDT induce carcinoma (muscle cancer) and growth of tumours.
• Handling of waste materials may cause skin, respiratory and intestinal infections.
• Non-biodegradable substances do not decompose easily so it produces land and water pollution.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-15/
Give any two ways in which biodegradable substances would affect the environment.
• During decomposition process of biodegradable substances foul smell and some harmful gases are released which make problem for the nearby living person. • During decomposition it provide a breeding ground for mosquitoes, insects and microbes responsible for diseases like cholera, diarrhoea, etc. FRead more
• During decomposition process of biodegradable substances foul smell and some harmful gases are released which make problem for the nearby living person.
• During decomposition it provide a breeding ground for mosquitoes, insects and microbes responsible for diseases like cholera, diarrhoea, etc.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-15/