Green revolution hss not only helped in increase food grain production but has also created so many problems. Analyse in any four.(100 - 150 words)
Answers
Green Revolution is a unique event in the agricultural history of Independent India. This has saved us from the disasters of hunger and starvation and made our peasants more confident than ever before. But it has its own inherent deficiency segments.
Some of the demerits or problems of Green Revolution are briefly discussed as under:
1. Inter-Crop Imbalances:
The effect of Green Revolution is primarily felt on food-grains. Although all food-grains including wheat, rice, jowar, bajra and maize have gained from the Green Revolution, it is wheat which has benefited the most. It has wrested areas from coarse cereals, pulses and oilseeds. The HYV seeds in latter crops have either not been developed so far at all, or they are not good enough for farmers to risk their adoption.
2. Regional Disparities:
Green Revolution technology has given birth to growing disparities in economic development at interred and intra regional levels. It has so far affected only 40 per cent of the total cropped area and 60 per cent is still untouched by it. The most affected areas are Punjab, Haryana and western Uttar Pradesh in the north and Andhra Pradesh and Tamil Nadu in the south.
3. Increase in Inter-Personal Inequalities:
It has been observed that it is the big farmer having 10 hectares or more land, who is benefited the most from Green Revolution because he has the financial resources to purchase farm implements, better seeds, fertilizers and can arrange for regular supply of irrigation water to the crops.
4. Unemployment:
Except in Punjab, and to some extent in Haryana, farm mechanization under Green Revolution has created widespread unemployment among agricultural labourers in the rural areas. The worst hit are the poor and the landless people.
5. Other Problems:
Agriculture under Green Revolution has not grown at a rate which was expected in the beginning. The differential rates of growth of different crops and their regional variations have already been discussed. Some scholars have expressed serious doubts about the capability of HYV seeds itself.
Answer:
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Explanation:
: Human responses in evergreen rainforest Biomes are not only affecting to these areas but also the ecosystem of the earth. Support this statement by giving four arguments.
Ans :
Rainforests are the world's most spectacular ecosystems. An ecosystem is not just the plants, but also the birds, mammals, reptiles, fish, amphibians, invertebrates, bacteria, and even the non-living elements like soil, water and air. In some cases their climates have remained stable for the last 65 million years. This means that they have developed arrays of life unequalled by any other ecosystems on the planet. The destruction of the rainforests will affect other ecosystems throughout the world.
Biome is another name for a distinct type of ecosystem. Biomes are characterized by their climate, which determines the particular plants found there.
1.)Disruption of nutrient cycles
Traditional slash and burn agriculture releases the nutrients held in above ground biomass to produce a high yield from a small area right after the burning.
2.) Transpiration
Tropical rainforests play a major role in the global climate system because they exchange huge amounts of water and energy with the atmosphere.
3.) Carbon fluxes
An important consequence of higher mortality rates during broad-scale mortality events is the reduced capacity of impacted forests to absorb CO2 and the huge amounts of carbon that can be released into the atmosphere as the dead trees decomposed.
4.) Tree growth
Strong seasonal variations in tree growth (diameter increment) in tropical rainforests have been observed