Question

speech of 2 minutes on environmental pollution is a global concern​

Answer 1

Explanation:

The topic of my speech is environmental pollution. Our earth is the only planet in the universe which has an environment suitable for life. Air and water is needed for survival.The poisonous gases, chemicals and dust released in the air fall back on earth as acid rain harming crops and life.

Air pollution is a major global environmental risk to our health and food security. It is estimated to cause about 3.7 million premature deaths worldwide and destroys enough crops to feed millions of people every year. Project impact of future changes in human activities and climate on air quality.

Answer 2

Answєr :-

Air pollution is a major global environmental risk to our health and food security. It is estimated to cause about 3.7 million premature deaths worldwide and destroys enough crops to feed millions of people every year. Quantify regional transport of air pollutants within a country.

Environmental pollution is one of the most serious global challenges. Wild-type organisms have a slower degradation rate of hazardous materials. Currently, advanced molecular biology tools along with conventional approaches allow us to rapidly degrade or accumulate hazardous materials from environments. This can help modify microorganisms to gain the ability to sense and degrade hazardous chemicals from contaminated sites, in turn, allowing us to grow vegetation and improve crop productivity. In this chapter, conventional and advanced molecular biology tools for the removal and detoxification of contaminants from soil and water to improve environmental conditions are highlighted.

Environmental pollution represents an obstacle to the economical exploitation of coal deposits. In industrialized countries, the rules for protection of the environment are stricter than in developing countries. Thus, to get a license to open mines involves lengthy procedures which in turn cause delay. Indian authorities have also started to put stringent conditions in place regarding environmental pollution. Consequently, ecological problems can be totally prevented, but such measures are costly.

Some environmental consequences of mining and processing coal deposits are deforestation, land damage, water pollution and hydrological damage, air pollution, noise pollution, ground vibration and rock dispersal, and visual impact. Such environmental impacts are increasing day by day because the scale of individual mining operations is increasing as mining of lower grade deposits increases. The current trend toward surface mining, and mine mechanization, is also aggravating such problems.The use of environmental standards as criteria for decision making in a developing country like India has to be properly assessed. If the norms of developed countries are applied in India, costs will be very high. Thus, the standards selected should be compatible with the country’s economic situation.

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