A school organized a study tour for its students to observe how do people in village
use energy resources for their living. They observed that in one of the villages,
people use wood and cow dung as a fuel while in the nearby village they saw
modern technology was used by the villagers for better sanitation and management
of their bio-waste and sewage materials by establishing bio gas plant.
(a) If you compare the situation of both the villages, which practice would you
prefer to be the best and why ?
(b) Name some other cleaner fuels.
(c) What are the harmful effects of burning wood and cow dung?
(d) Between wood, cow dung, biogas, coal, LPG --which has the highest calorific
valu
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Answer:
biogas
respiratory illess
Explanation:
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