Question

Explain any 5 causes of air pollution in kolkata in the mid 19th century and 20th century..... and plz dont give me oswall question bank answer and it should be too short

Answer 1

(i) Pollution was due to large number of people being dependent on dung and wood as fuel.

(ii) Industries and other establishment used steam engines that run on coal and caused air pollution.

(iii) Due to marshy land, the resulting fog combined with smoke to generate thick smog.

(iv) Calcutta had a history of air pollution. Its inhabitants inhaled grey smoke.

i know only 4

hope it helps