NEET BIOLOGY

ECOLOGY

ENVIRONMENTAL ISSUES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What contributes the MOST to heavy smog in London, England?
A
agricultural runoff
B
clear-cutting forests
C
automobile emissions
D
slash-and-burn farming
Explanation: 

Detailed explanation-1: -A period of unusually cold weather, combined with an anticyclone and windless conditions, collected airborne pollutants-mostly arising from the use of coal-to form a thick layer of smog over the city.

Detailed explanation-2: -Today, pea-soupers are known as sulphurous smog or “London smog”. These result from a high concentration of sulphur oxides (SOx) in the atmosphere from fossil fuels high in sulphur, such as coal.

Detailed explanation-3: -Smog is a type of air pollution, created by industrial output and natural weather patterns. London’s reliance on coal-fired power plants for electricity and heat, and diesel-powered buses for public transportation, contributed to the Great Smog. London’s weather also contributed to the Great Smog.

Detailed explanation-4: -The Burning of Fossil Fuels Most of the air pollution takes place due to the incomplete burning of fossil fuels. These include coal, oil, and gasoline to produce energy for electricity or transportation. The release of CO at a high level indicates how much fossil fuel is burned.

Detailed explanation-5: -Sulfurous smog (London smog) Therefore, cities located close to the equator or in the subtropical sphere are not affected by it. This type of air pollution emerges as a result of burning coal, the accumulation of particulate matter from industrial activity and a drop in temperature.

There is 1 question to complete.