(i) Decomposers help in decomposing the dead bodies of plants and animals and hence act as cleansing agents of the environment. (ii) Decomposers also help in putting back the various elements of which dead plants and animals are made, back into the soil, air and water for reuse by the producers likeRead more
(i) Decomposers help in decomposing the dead bodies of plants and animals and
hence act as cleansing agents of the environment.
(ii) Decomposers also help in putting back the various elements of which dead plants and
animals are made, back into the soil, air and water for reuse by the producers like crop
plants.
(iii) They help in recycling of the nutrients.
(iv) They decompose dead remains thereby providing space for new life to settle in the
biosphere.
Trophic Levels : The various steps in a food chain at which the transfer of food (or energy) takes place are called trophic levels. Example A food chain operating in a grassland is given below : Grass -> Insects -> Frog-> Birds In this food chain 1. Grass represents first trophic level. 2 GRead more
Trophic Levels : The various steps in a food chain at which the transfer of food
(or energy) takes place are called trophic levels. Example A food chain operating in a
grassland is given below :
Grass -> Insects -> Frog-> Birds
In this food chain
1. Grass represents first trophic level.
2 Grasshopper represents second trophic level.
3. Frog represents third trophic level.
4 Eagle represents fourth tropic level.
Some approaches towards the conservation of forests are as follows: (a) People should show their participation in saving the forest by protesting against the cutting of trees. For example, Chipko Andolan (b) Planting of trees should be increased. Rate of afforestation must be more than that of deforRead more
Some approaches towards the conservation of forests are as follows:
(a) People should show their participation in saving the forest by protesting against the
cutting of trees. For example, Chipko Andolan
(b) Planting of trees should be increased. Rate of afforestation must be more than that of
deforestation.
(c) Some people cut precious trees such as Chandan to earn money. Government should
take legal steps to catch these wood smugglers.
(d) Habitants of forests must not be bothered by the forest offcials. Otherwise, this
would result in the clash between tribal people and the government offcials, thereby
enhancing the naxal activities in forests.
We should conserve forests and wildlife to preserve the biodiversity (range of different life-forms) so as to avoid the loss of ecological stability. A large number of tribes are the habitants in and around the forests. If the forests are not conserved, then it may affect these habitants. Without prRead more
We should conserve forests and wildlife to preserve the biodiversity (range of
different life-forms) so as to avoid the loss of ecological stability. A large number of
tribes are the habitants in and around the forests. If the forests are not conserved, then it
may affect these habitants. Without proper management of forest and wildlife, the
quality of soil, the water sources, and even the amount of rainfall may be affected.
Without forest and wildlife, life would become impossible for human beings.
In the case of a long-time perspective in managing our resources, these resources will last for the generations to come. This management ensures uniform distribution among the people. It conserves the natural resources for many years and not just for a few years, as in the case of a short-term perspRead more
In the case of a long-time perspective in managing our resources, these
resources will last for the generations to come. This management ensures uniform
distribution among the people. It conserves the natural resources for many years and not
just for a few years, as in the case of a short-term perspective in conserving natural
resources.
Natural resources of the Earth must be distributed among the people in such a way so that no one can be restrained from their share. Forces working against an equitable distribution of resources are: 1. Human greed 2. Corruption 3. Lobby of the rich and powerful people
Natural resources of the Earth must be distributed among the people in such a way so that no one can be restrained from their share.
Forces working against an equitable distribution of resources are:
There should be a judicious use of natural resources as they are limited in nature. We should not exploit resources for our short term gains as this would only lead to depletion of natural resources for the present generation as well as generations to come. Hence, we can say that there are hardly anRead more
There should be a judicious use of natural resources as they are limited in
nature. We should not exploit resources for our short term gains as this would only lead
to depletion of natural resources for the present generation as well as generations to
come. Hence, we can say that there are hardly any advantages of exploiting natural
resources for short term gains.
What is the role of decomposers in the ecosystem?
(i) Decomposers help in decomposing the dead bodies of plants and animals and hence act as cleansing agents of the environment. (ii) Decomposers also help in putting back the various elements of which dead plants and animals are made, back into the soil, air and water for reuse by the producers likeRead more
(i) Decomposers help in decomposing the dead bodies of plants and animals and
See lesshence act as cleansing agents of the environment.
(ii) Decomposers also help in putting back the various elements of which dead plants and
animals are made, back into the soil, air and water for reuse by the producers like crop
plants.
(iii) They help in recycling of the nutrients.
(iv) They decompose dead remains thereby providing space for new life to settle in the
biosphere.
What are trophic levels? Give an example of a food chain and state the different trophic levels in it.
Trophic Levels : The various steps in a food chain at which the transfer of food (or energy) takes place are called trophic levels. Example A food chain operating in a grassland is given below : Grass -> Insects -> Frog-> Birds In this food chain 1. Grass represents first trophic level. 2 GRead more
Trophic Levels : The various steps in a food chain at which the transfer of food
See less(or energy) takes place are called trophic levels. Example A food chain operating in a
grassland is given below :
Grass -> Insects -> Frog-> Birds
In this food chain
1. Grass represents first trophic level.
2 Grasshopper represents second trophic level.
3. Frog represents third trophic level.
4 Eagle represents fourth tropic level.
Suggest some approaches towards the conservation of forests.
Some approaches towards the conservation of forests are as follows: (a) People should show their participation in saving the forest by protesting against the cutting of trees. For example, Chipko Andolan (b) Planting of trees should be increased. Rate of afforestation must be more than that of deforRead more
Some approaches towards the conservation of forests are as follows:
See less(a) People should show their participation in saving the forest by protesting against the
cutting of trees. For example, Chipko Andolan
(b) Planting of trees should be increased. Rate of afforestation must be more than that of
deforestation.
(c) Some people cut precious trees such as Chandan to earn money. Government should
take legal steps to catch these wood smugglers.
(d) Habitants of forests must not be bothered by the forest offcials. Otherwise, this
would result in the clash between tribal people and the government offcials, thereby
enhancing the naxal activities in forests.
Why should we conserve forests and wildlife?
We should conserve forests and wildlife to preserve the biodiversity (range of different life-forms) so as to avoid the loss of ecological stability. A large number of tribes are the habitants in and around the forests. If the forests are not conserved, then it may affect these habitants. Without prRead more
We should conserve forests and wildlife to preserve the biodiversity (range of
See lessdifferent life-forms) so as to avoid the loss of ecological stability. A large number of
tribes are the habitants in and around the forests. If the forests are not conserved, then it
may affect these habitants. Without proper management of forest and wildlife, the
quality of soil, the water sources, and even the amount of rainfall may be affected.
Without forest and wildlife, life would become impossible for human beings.
How would these advantages differ from the advantages of using a longterm perspective in managing our resources?
In the case of a long-time perspective in managing our resources, these resources will last for the generations to come. This management ensures uniform distribution among the people. It conserves the natural resources for many years and not just for a few years, as in the case of a short-term perspRead more
In the case of a long-time perspective in managing our resources, these
See lessresources will last for the generations to come. This management ensures uniform
distribution among the people. It conserves the natural resources for many years and not
just for a few years, as in the case of a short-term perspective in conserving natural
resources.
Why do you think that there should be equitable distribution of resources? What forces would be working against an equitable distribution of our resources?
Natural resources of the Earth must be distributed among the people in such a way so that no one can be restrained from their share. Forces working against an equitable distribution of resources are: 1. Human greed 2. Corruption 3. Lobby of the rich and powerful people
Natural resources of the Earth must be distributed among the people in such a way so that no one can be restrained from their share.
Forces working against an equitable distribution of resources are:
1. Human greed
2. Corruption
3. Lobby of the rich and powerful people
See lessWhat would be the advantages of exploiting resources with short-term aims?
There should be a judicious use of natural resources as they are limited in nature. We should not exploit resources for our short term gains as this would only lead to depletion of natural resources for the present generation as well as generations to come. Hence, we can say that there are hardly anRead more
There should be a judicious use of natural resources as they are limited in
See lessnature. We should not exploit resources for our short term gains as this would only lead
to depletion of natural resources for the present generation as well as generations to
come. Hence, we can say that there are hardly any advantages of exploiting natural
resources for short term gains.