Those organisms which join the food chain are termed as trophic levels There are four trophic levels: (i) First trophic level - Producers (Plants) (ii) Second trophic level – Primary consumers. (iii) Third trophic level - Secondary consumers. (iv) Fourth trophic level - Top consumers. Plants--> RRead more
Those organisms which join the food chain are termed as trophic levels
There are four trophic levels:
(i) First trophic level – Producers (Plants)
(ii) Second trophic level – Primary consumers.
(iii) Third trophic level – Secondary consumers.
(iv) Fourth trophic level – Top consumers.
Plants–> Rabbit–> Wolf–> Tiger
In the above food chain plants are producers and represents the first trophic level.
Rabbit is the primary consumer i.e. herbivorous animal and represent the second Trophic level.
Wolf is the secondary consumer and represents the third trophic level.
Tiger is the top consumer and represents the fourth trophic level.
Non-biodegradable substances would affect the environment in following two ways- (i) Non- biodegradable substances may cause soil pollution and water pollution. (ii) If non-biodegradable substances remain in fertile soil or land than it becomes barren.
Non-biodegradable substances would affect the environment in following two ways-
(i) Non- biodegradable substances may cause soil pollution and water pollution.
(ii) If non-biodegradable substances remain in fertile soil or land than it becomes barren.
Biodegradable substances would affect the environment in following two ways- (i) These substances decomposed by the action of micro-organisms that cause foul smell. (ii) The rotting biodegradable wastes act as breeding ground for insects which may cause diseases to living organisms.
Biodegradable substances would affect the environment in following two ways-
(i) These substances decomposed by the action of micro-organisms that cause foul smell.
(ii) The rotting biodegradable wastes act as breeding ground for insects which may cause diseases to living organisms.
Biodegradable substances are those substances on which micro-organisms like bacteria or decomposers act and break down these substances into simpler compounds, example of Biodegradable substances are dead remains of plants and animals and their waste products, paper etc. But on some compounds like pRead more
Biodegradable substances are those substances on which micro-organisms like bacteria or decomposers act and break down these substances into simpler compounds, example of Biodegradable substances are dead remains of plants and animals and their waste products, paper etc.
But on some compounds like plastics and metals, micro-organisms do not act to decompose them and these compounds are known as non-biodegradable compounds.
Changes that i would incorporate in my life-style in a move towards a sustainable use of natural resources are: (i) Started using cloth, paper or jute bags instead of polythene bags. (ii) Reduce use of electricity by : - Avoiding unnecessary use of light and fans. - Using CFLs instead oRead more
Changes that i would incorporate in my life-style in a move towards a sustainable use of natural resources are:
(i) Started using cloth, paper or jute bags instead of polythene bags.
(ii) Reduce use of electricity by : – Avoiding unnecessary use of light and fans. – Using CFLs instead of fluorescent bulbs and lights. – Using stairs instead of lifts for 2-3 floors. – Started wearing one or more sweaters instead of room heater in winters.
(iii) Recycle plastics, papers, glass and metal items.
(iv) Reuse different items like plastic bags, envelopes etc.
(v) Use pressure cooker or solar cooker for cooking.
(vi) Prefer walking or use bicycle for short distance and use public transport for long distance.
(a) The five things done by me over the last one week to conserve our natural resources were :(i) Planted trees in the garden of our society .(ii) Used pressure cooker to save fuel.(iii) Switched off lights of my room before leaving.(iv) Went to school by bicycle when I missed the school bus.(v) CloRead more
(a) The five things done by me over the last one week to conserve our natural resources were : (i) Planted trees in the garden of our society . (ii) Used pressure cooker to save fuel. (iii) Switched off lights of my room before leaving. (iv) Went to school by bicycle when I missed the school bus. (v) Closed the tap tightly after bath.
(b) The five things done by me over the last one week which increased the pressure on our natural resources were : (i) Instead of wearing sweater used room heater. (ii) Forgot to switch off the light and TV before sleeping. (iii) Did not closed the tap tightly after bath. (iv) Cooked rice in a utensil instead of cooker. (v) Went to school by car with my father instead of school bus.
To reduce consumption of the various natural resources, I can do the following things - (i) Save electricity by avoiding unnecessary use of lights and fans. (ii) Use solar Energy. (iii) Prefer walking or using bicycle for short distance. (iv) Control the waste of water. (v) Avoid the use of productsRead more
To reduce consumption of the various natural resources, I can do the following things –
(i) Save electricity by avoiding unnecessary use of lights and fans.
(ii) Use solar Energy.
(iii) Prefer walking or using bicycle for short distance.
(iv) Control the waste of water.
(v) Avoid the use of products that are made from animals body.
(vi) Afforestation i.e. planting of trees.
(vii) Guide others regarding proper use of natural resources.
As an individual, I can contribute to the management of : (a) Forests and wild-life by - (i) Afforestation - Planting of trees. (ii) Controlling cutting of trees. (iii) Avoiding the use of products that are made from animals body. (b) Water resources by- (i) Using limited watRead more
As an individual, I can contribute to the management of :
(a) Forests and wild-life by – (i) Afforestation – Planting of trees. (ii) Controlling cutting of trees. (iii) Avoiding the use of products that are made from animals body.
(b) Water resources by- (i) Using limited water. (ii) Preventing wastage of water in cleaning of vehicles and floor. (iii) Repairing leaking taps immediately. (iv) Guiding others for proper use of water.
(c) Coal and petroleum by – (i) Using bicycle for short distance instead of vehicles like car and scooter. (ii) Turning off the vehicle while waiting on red lights.
The four main stakeholders are : (i) The local people who live in and around the forest. (ii) The Forest department. (iii) The industrialist. (iv) The forest and wildlife activists. The local people should have the authority to decide the management of forest produce because local people use the forRead more
The four main stakeholders are :
(i) The local people who live in and around the forest.
(ii) The Forest department.
(iii) The industrialist.
(iv) The forest and wildlife activists.
The local people should have the authority to decide the management of forest produce because local people use the forest and wildlife resources continuously to fulfill their basic needs and their involvement makes them aware for the conservation of forest and wildlife.
What is the role of decomposers in the ecosystem?
Decomposers act as cleansing agents of environment as they decompose the dead bodies and dead parts of plants and animals and clean the environment.
Decomposers act as cleansing agents of environment as they decompose the dead bodies and dead parts of plants and animals and clean the environment.
See lessWhat are trophic levels? Give an example of a food chain and state the different trophic levels in it.
Those organisms which join the food chain are termed as trophic levels There are four trophic levels: (i) First trophic level - Producers (Plants) (ii) Second trophic level – Primary consumers. (iii) Third trophic level - Secondary consumers. (iv) Fourth trophic level - Top consumers. Plants--> RRead more
Those organisms which join the food chain are termed as trophic levels
There are four trophic levels:
(i) First trophic level – Producers (Plants)
(ii) Second trophic level – Primary consumers.
(iii) Third trophic level – Secondary consumers.
(iv) Fourth trophic level – Top consumers.
Plants–> Rabbit–> Wolf–> Tiger
See lessIn the above food chain plants are producers and represents the first trophic level.
Rabbit is the primary consumer i.e. herbivorous animal and represent the second Trophic level.
Wolf is the secondary consumer and represents the third trophic level.
Tiger is the top consumer and represents the fourth trophic level.
Give any two ways in which non-biodegradable substances would affect the environment.
Non-biodegradable substances would affect the environment in following two ways- (i) Non- biodegradable substances may cause soil pollution and water pollution. (ii) If non-biodegradable substances remain in fertile soil or land than it becomes barren.
Non-biodegradable substances would affect the environment in following two ways-
See less(i) Non- biodegradable substances may cause soil pollution and water pollution.
(ii) If non-biodegradable substances remain in fertile soil or land than it becomes barren.
Give any two ways in which biodegradable substances would affect the environment.
Biodegradable substances would affect the environment in following two ways- (i) These substances decomposed by the action of micro-organisms that cause foul smell. (ii) The rotting biodegradable wastes act as breeding ground for insects which may cause diseases to living organisms.
Biodegradable substances would affect the environment in following two ways-
See less(i) These substances decomposed by the action of micro-organisms that cause foul smell.
(ii) The rotting biodegradable wastes act as breeding ground for insects which may cause diseases to living organisms.
Why are some substances biodegradable and some non-biodegradable?
Biodegradable substances are those substances on which micro-organisms like bacteria or decomposers act and break down these substances into simpler compounds, example of Biodegradable substances are dead remains of plants and animals and their waste products, paper etc. But on some compounds like pRead more
Biodegradable substances are those substances on which micro-organisms like bacteria or decomposers act and break down these substances into simpler compounds, example of Biodegradable substances are dead remains of plants and animals and their waste products, paper etc.
See lessBut on some compounds like plastics and metals, micro-organisms do not act to decompose them and these compounds are known as non-biodegradable compounds.
On the basis of the issues raised in chapter 16 class 10, what changes would you incorporate in your lifestyle in a move towards a sustainable use of our resources?
Changes that i would incorporate in my life-style in a move towards a sustainable use of natural resources are: (i) Started using cloth, paper or jute bags instead of polythene bags. (ii) Reduce use of electricity by : - Avoiding unnecessary use of light and fans. - Using CFLs instead oRead more
Changes that i would incorporate in my life-style in a move towards a sustainable use of natural resources are:
See less(i) Started using cloth, paper or jute bags instead of polythene bags.
(ii) Reduce use of electricity by :
– Avoiding unnecessary use of light and fans.
– Using CFLs instead of fluorescent bulbs and lights.
– Using stairs instead of lifts for 2-3 floors.
– Started wearing one or more sweaters instead of room heater in winters.
(iii) Recycle plastics, papers, glass and metal items.
(iv) Reuse different items like plastic bags, envelopes etc.
(v) Use pressure cooker or solar cooker for cooking.
(vi) Prefer walking or use bicycle for short distance and use public transport for long distance.
List five things you have done over the last one week in favor of natural resources.
(a) The five things done by me over the last one week to conserve our natural resources were :(i) Planted trees in the garden of our society .(ii) Used pressure cooker to save fuel.(iii) Switched off lights of my room before leaving.(iv) Went to school by bicycle when I missed the school bus.(v) CloRead more
(a) The five things done by me over the last one week to conserve our natural resources were :
(i) Planted trees in the garden of our society .
(ii) Used pressure cooker to save fuel.
(iii) Switched off lights of my room before leaving.
(iv) Went to school by bicycle when I missed the school bus.
(v) Closed the tap tightly after bath.
(b) The five things done by me over the last one week which increased the pressure on our natural resources were :
See less(i) Instead of wearing sweater used room heater.
(ii) Forgot to switch off the light and TV before sleeping.
(iii) Did not closed the tap tightly after bath.
(iv) Cooked rice in a utensil instead of cooker.
(v) Went to school by car with my father instead of school bus.
What can you as an individual do to reduce your consumption of the various natural resources?
To reduce consumption of the various natural resources, I can do the following things - (i) Save electricity by avoiding unnecessary use of lights and fans. (ii) Use solar Energy. (iii) Prefer walking or using bicycle for short distance. (iv) Control the waste of water. (v) Avoid the use of productsRead more
To reduce consumption of the various natural resources, I can do the following things –
See less(i) Save electricity by avoiding unnecessary use of lights and fans.
(ii) Use solar Energy.
(iii) Prefer walking or using bicycle for short distance.
(iv) Control the waste of water.
(v) Avoid the use of products that are made from animals body.
(vi) Afforestation i.e. planting of trees.
(vii) Guide others regarding proper use of natural resources.
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?
As an individual, I can contribute to the management of : (a) Forests and wild-life by - (i) Afforestation - Planting of trees. (ii) Controlling cutting of trees. (iii) Avoiding the use of products that are made from animals body. (b) Water resources by- (i) Using limited watRead more
As an individual, I can contribute to the management of :
(a) Forests and wild-life by –
(i) Afforestation – Planting of trees.
(ii) Controlling cutting of trees.
(iii) Avoiding the use of products that are made from animals body.
(b) Water resources by-
(i) Using limited water.
(ii) Preventing wastage of water in cleaning of vehicles and floor.
(iii) Repairing leaking taps immediately.
(iv) Guiding others for proper use of water.
(c) Coal and petroleum by –
See less(i) Using bicycle for short distance instead of vehicles like car and scooter.
(ii) Turning off the vehicle while waiting on red lights.
We saw in this chapter that there are four main stakeholders when it comes to forests and wildlife. Which among these should have the authority to decide the management of forest produce? Why do you think so?
The four main stakeholders are : (i) The local people who live in and around the forest. (ii) The Forest department. (iii) The industrialist. (iv) The forest and wildlife activists. The local people should have the authority to decide the management of forest produce because local people use the forRead more
The four main stakeholders are :
See less(i) The local people who live in and around the forest.
(ii) The Forest department.
(iii) The industrialist.
(iv) The forest and wildlife activists.
The local people should have the authority to decide the management of forest produce because local people use the forest and wildlife resources continuously to fulfill their basic needs and their involvement makes them aware for the conservation of forest and wildlife.