one should breath by nose and never by mouth
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Our nasal passage is lined with very fine hair cells and mucus secreting cells which trap smaller and bigger particles respectively and only let the clean air into the lungs.
whereas, our mouth cannot offer any such protection.
Thus it is advised not to breathe from the mouth.
PLEASE CHOOSE BRAINLIEST
whereas, our mouth cannot offer any such protection.
Thus it is advised not to breathe from the mouth.
PLEASE CHOOSE BRAINLIEST
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Summer of 2016 saw thirteen Indian states grappling with severest drought greatly fueling the ongoing depletion of aquifers. Then the supposedly surplus southwest monsoon also fell short by 3 per cent further stressing the falling groundwater table. At the same time the pollution of surface water sources, which function as recharge point for ground water, went uninterrupted.
All through the year, Central and many State Governments unveiled several new plans and projects targeting the sustainable consumption of groundwater. The judiciary made various orders to reign in illegal extraction of the finite resource. However, the situation continued to deteriorate.
Consumption Up; Depletion On
Groundwater is central[1] to the water sector in India. At present 65 per cent of the total agriculture area is irrigated by the groundwater. It caters to about 85 per cent l drinking water supply in rural areas and meets almost 60-65 per cent of the urban water needs and supplies about 55 per cent of the industrial demand. With surface water sources dwindling, people have shifted to unregulated tapping of ground water for agriculture and drinking leading to levels dipping by 3 times over the last 60 years. Groundwater based irrigation[2] underpins India’s agriculture. India is rapidly moving towards becoming water crisis[3].
Revealing the grim situation, a Central Ground Water Board (CGWB) 2011 report[4] found that about 50 per cent of groundwater in country is contaminated. The CGWB has categorized 62.2% of the total assessment units of 6,600 blocks, mandals and taluks as over exploited. The report also said that 276 districts have high levels of fluoride, 387 report nitrates above safe levels and 86 districts have high levels of arsenic.
The groundwater board also said that contaminated water caused 10 million cases of diarrhea, 740,000 cases of typhoid and 150,000 viral-hepatitis cases between 2007 and 2011 and as many as 650 cities and towns lie along polluted rivers, which contaminate groundwater.
All through the year, Central and many State Governments unveiled several new plans and projects targeting the sustainable consumption of groundwater. The judiciary made various orders to reign in illegal extraction of the finite resource. However, the situation continued to deteriorate.
Consumption Up; Depletion On
Groundwater is central[1] to the water sector in India. At present 65 per cent of the total agriculture area is irrigated by the groundwater. It caters to about 85 per cent l drinking water supply in rural areas and meets almost 60-65 per cent of the urban water needs and supplies about 55 per cent of the industrial demand. With surface water sources dwindling, people have shifted to unregulated tapping of ground water for agriculture and drinking leading to levels dipping by 3 times over the last 60 years. Groundwater based irrigation[2] underpins India’s agriculture. India is rapidly moving towards becoming water crisis[3].
Revealing the grim situation, a Central Ground Water Board (CGWB) 2011 report[4] found that about 50 per cent of groundwater in country is contaminated. The CGWB has categorized 62.2% of the total assessment units of 6,600 blocks, mandals and taluks as over exploited. The report also said that 276 districts have high levels of fluoride, 387 report nitrates above safe levels and 86 districts have high levels of arsenic.
The groundwater board also said that contaminated water caused 10 million cases of diarrhea, 740,000 cases of typhoid and 150,000 viral-hepatitis cases between 2007 and 2011 and as many as 650 cities and towns lie along polluted rivers, which contaminate groundwater.
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