Question

use of dried dung and agricultural waste as fuels must be discouraged​

Answer 1

Explanation:

Researchers say while the dung is burnt in kitchen, as much as 25 per cent of the arsenic in fumes could be absorbed by the respiratory tract of people and lead to diseases such as persistent cough and chronic bronchitis. The arsenic particles in the air might also settle on food and water and contaminate it.

From purifying someone's 'aura' to producing copious amounts of 'Pranvayu' or oxygen to purify the environment, cow dung seems to have superpowers, some of which are literally inexplicable. ... Another wrote, 'So burning cow dung purifies air

Answer 2

All over the developing world, meals are cooked and homes are heated with homemade traditional stoves or open fires. These stoves are fired with either biomass fuels, such as wood, branches, twigs or dung, or coal. When these are not available, agricultural residues or even leaves and grass are used. The smoke emitted from such stoves is made up of particles and gaseous chemicals. It is estimated that as many as 70% of households in developing countries use fuels such as wood, dung and crop residues for cooking (International Energy Agency, 2002; WHO, 2006). The seemingly ‘free’ availability of biomass fuels from nature makes them the primary fuel source for household purposes.