✅ what do you know about Ganga Action Plan?
✅write a short note on Dal Lake ?
✅Explain how can we check the PH of a tap water and compare it with Ph of the water in the local water
Q:- what do you know about Ganga Action Plan?
Ans:- Ganga Action Plan :- It was a multi crore project which started in the year 1985 to enhance the quality of the water in the river Ganga. The total coliform count was very high in the Ganga (more than 1200 MPN/100ml) when the project was started. Where MPN (Most Probable Number).
Q:- write a short note on Dal Lake ?
Ans:- Dal Lake is a famous fresh water lake of kashmir. It’s depth is near 3 meters. It is reported that 100 years ago, its area was 25 square kilometres which has been shrunk to 11.5 square kilometres at present. The shrinking and deterioration of this lake at a high rate is due to human greed , accelerated land use along the catchment, dumping of domestic waste , garbage and sewage and illegal encroachment etc . It is losing its character and identity as it is rapidly becoming stilted up. To conserve the Dal Lake , an integrated and multidisciplinary approach is needed to save this lake from further degradation.
Q:- Explain how can we check the PH of a tap water and compare it with Ph of the water in the local water ?
Ans:- Dip a wide range universal ph indicator paper into the tap water and note the chage in its colour . Now compare the colour obtained with the standard chart provide and assign its PH. The PH of tap is nearly neutral , i.e 7.00. If the paper turns red , it indicates acidic nature of water and if the paper turns blue , it indicates alkaline nature . Find out the PH of polluted water and compare it with the PH of tap water . The PH of polluted is not neutral. It is either alkaline ir acidic. Change in PH is caused due to effluents entering to a water body ( pond , lake , stream etc ).
Q :- what are the three R’s to save natural resources?
Ans:- The above description can be concluded with three R’s necessary to save environment. The three R’s are : Reduce, Recycle and Reuse .
Reduce : Natural Resources can be saved by their lesser use. It means we must use everything in less quantity to conserve the Resources. We should avoid unnecessary use of electricity, wasting of food and water , cutting of trees , too much use of automobiles etc .
Recycle :- There are certain Resources which can be recycled to be used again. The materials like plastic, clothes, paper and metal pieces which are not of any use at our home are recycled to make required things instead of synthesizing or extraction of fresh plastic, paper , glass or metal . It helps to reduce the production of fresh items . Thus, recycling saves resources decreases uses of toxic chemicals, cuts the use of energy and helps the environment in many ways.
Reuse :- It is better than recycling because in this process we use the already used article again and again and no energy is required as compared to recycling. Fir example, a plastic container in which we buy various food-items like tea leaves, sweets or pickle can be reused for storing some other thing in the kitchen . For example, newspaper and magazine can be used to make envelopes.
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