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Preeti Dabral 3 years ago
Malthus’s theory of population growth – outlined in his Essay on Population (1798)- was a rather pessimistic one. He was of the view that the human population tends to grow at a much faster rate than the rate at which the human subsistence can grow. Therefore, humanity is condemned to live in poverty forever because the growth of agricultural production will always be overtaken by population growth. Because population growth is always more than the growth in production of subsistence resources, the only way to increase prosperity is by controlling the growth of population.
According to Malthus, there are two checks of population control:
- Positive Checks: Those checks which are implemented by nature are called positive checks. That is why the death rate increases. For example, war, epidemic, earthquake, famine, tsunami, flood, etc. These natural checks are very painful to put they reduce the population to a great extent. These checks are not permanent.
- Preventive Checks: These types of checks are the efforts made by humans. There are divided into two parts-morality and prevention through artificial means. In moral checks person uses his mental level to control the population. According to Mathus, moral checks are good but artificial checks are against religion.
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Preeti Dabral 3 years ago
|
1.Meaning |
In a grazing food-chain, the first starts with plants as producers and ends with carnivores as consumers at the last level, with the herbivores being at the intermediate level. |
A detritus food chain is based on autotrophs energy capture initiated by grazing animals and involves the decomposition or breaking down of organic wastes and dead matter derived from the grazing food-chain. |
| 2.Origin | The grazing food chain begins with the green plants. | In the detritus food chain,it begins with decomposed and dead organic matter. |
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2.Levels |
The levels involved in a grazing chain range between 3 to 5. |
The levels involved in a detritus food- chain range between 3 to 7 |
|
3.Example |
Example of grazing food chain is Plants-Cow-Lion. |
Example of detritus food chain is Insects-Rat-Cat-Dog-Lion. |
Posted by Seema Sahni 3 years ago
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Preeti Dabral 3 years ago
Gandhi stayed in Champaran for a long time. The Champaran episode was a turning point in his life. It was during this struggle in 1917 that he decided to urge the departure of the British.
Champaran episode did not begin as an act of defiance. It grew out of an attempt to make the sufferings of large numbers of poor peasants less severe. Gandhi concentrated on their practical day to day problems. He analysed the root cause of the problem-fear, and tried to eradicate it. The voluntary demonstration of the poor peasants against the government for putting Gandhi in trouble was the beginning of the end of their fear of the British.
In everything Gandhi did, he tried to mould a new free Indian who could stand on his own feet and thus make India free. He taught his lawyer friends a lesson in self-reliance by opposing the involvement of C.F. Andrews, an Englishman in .their unequal fight. His help would be a prop. This would reflect their weakness. Their cause was just and they must rely on themselves to win the battle. Thus self-reliance, Indian independence and help to sharecroppers were all bound together.
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Preeti Dabral 3 years ago
India Domestic Credit increased 11.6 % YoY in Sep 2022, compared with an increase of 11.2 % YoY in the previous month See the table below for more data.
Posted by Sujit Thakur 3 years ago
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Preeti Dabral 3 years ago
The five effects of exercise on muscular system are :
- Size and shape of muscle changes: Regular exercise changes the shape and size of the muscle. Cells of the muscles are enlarged which change the shape and size of the muscle.
- Correct body posture; regular exercise keeps the correct posture of the body by strengthening the muscles. The postural deformities do not occur. If there is any physical deformity, then it is removed.
- Food storage increases: the capacity of food storage in body can be enhanced by doing regular exercises. This stored food can be utilized immediately when required.
- Toned muscles: regular exercise helps in keeping the muscles in toned position. Muscles become firm and maintain a slight, a steady pull on the attachments.
- Efficient movement of muscles: The movement of muscles becomes efficient and smooth. The movements during different activities become attractive.
- Change in connective tissues: the connective tissues become powerful. These tissues can bear the stress of strenuous activity.
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Ritesh Rai 3 years, 1 month ago
4Thank You