30 Questions
What is the primary function of ozone in the atmosphere?
To protect us from ultra violet radiation
What is the main cause of ozone depletion?
Manmade processes releasing gases into the atmosphere
What is the effect of ozone on human health?
It causes cold and pneumonia
What is the name of the satellite that took a picture of the ozone layer in 1987?
NIMBUS-7
What is the main component of smog?
Fog and smoke
In which year were the first smog-related deaths recorded in London?
1873
What is the primary cause of the severe smog that covered Los Angeles in the 1940s?
Burning of fossil fuels
What is the pH range of acid rain experienced in Europe and parts of West Asia in 1958?
4.5 to 5.0 (acidic)
What is the estimated number of trees that can be saved by recovering one tonne of paper?
17 trees
What is the average number of times a human being breathes in a day?
22000
What is the primary goal of reforestation and restoring grass cover?
To control land loss and soil erosion
What percentage of the gaseous components of the atmosphere is found in the troposphere?
70%
What is the recommended approach to managing industrial waste?
Treating waste physically, chemically, and biologically
What is a major consequence of marine pollution?
Damage to the marine environment
What is the primary source of SOx and NOx in the atmosphere?
Burning of fossil fuels
What is the name of the layer of the atmosphere that sustains life and saves it from unfriendly environment?
Atmosphere
What are the two primary sources of marine pollution?
Land and sea
What is a significant pollutant that can destroy the marine environment?
Oil
What is a symptom of diseases caused by fluorosis?
Back pain and cannot easily bend
What is the purpose of adding chlorine to drinking water?
To kill bacteria, fungi, and other microbes
What is the recommended amount of chlorine to add to 1 liter of water for perfect disinfection?
30-40 mg
What is the definition of soil pollution?
The presence of toxic chemicals in soil, in high enough concentrations to pose a risk to human health and/or the ecosystem
Why is it important to prevent pesticides and insecticides from being used near water sources?
To prevent water pollution
What is the effect of fluorosis on teeth?
Teeth develop a brown coating on the enamel
What is the primary goal of lubricating machines in relation to noise pollution?
To reduce the noise produced by machines
What is the second step in controlling noise pollution if it cannot be controlled at its source?
Preventing the transmission of noise
What is the main effect of thermal pollution on aquatic life?
It makes the water harmful to human, animal, or aquatic life
What is an example of a human-induced activity that can cause sudden heat release and thermal pollution?
Both a and c
What is another term used to describe thermal pollution?
Heat pollution
Which of the following industries is a source of thermal pollution?
All of the above except c
Learn about the formation and importance of ozone in the atmosphere, and how human activities are causing its depletion. Understand the role of chlorine atoms in ozone layer depletion and its effects on human health.
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