GK
BASIC GENERAL KNOWLEDGE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Which metal pollute the air of a big city?
|
|
Lead
|
|
|
Copper
|
|
|
Chromium
|
|
|
Cadmium
|
Explanation:
Detailed explanation-1: -Complete answer: Lead is the metal which pollutes the air of big cities. Due to the usage of lead petroleum, when lead is emitted out, it causes damage to air, and is a major pollutant.
Detailed explanation-2: -The sources of air pollution are intrinsically linked to how we live in cities. While many people see cars and transport as the most obvious causes of air pollution, nearly 70% of particulate matter is related to the built environment such as heating of buildings, construction and traffic related to it.
There is 1 question to complete.