Environmental Chemistry - Online Test
Q1. Which of these was an attempt by world governments to specifically address the problem of global warming?
Answer : Option B
Explaination / Solution:
The Kyoto Agreement was an attempt by world governments to specifically address the problem of global warming.
Q2. Carbon dioxide and oxygen levels are maintained by:
Answer : Option D
Explaination / Solution:
Carbon dioxide and oxygen levels are maintained by Photosynthesis by plants and respiration by organisms.
Q3. The balance of carbon dioxide and oxygen has been upset by :
Answer : Option B
Explaination / Solution:
The balance of carbon dioxide and oxygen has been upset by Burning fossil fuels and deforestation which causes release of excessive CO2 and reduced O2
Q4. Deforestation is responsible for:
Answer : Option B
Explaination / Solution:
Deforestation is responsible for desertification
Q5. Carbon dioxide in the oceans can be used by:
Answer : Option C
Explaination / Solution:
Carbon dioxide in the oceans can be used by Phytoplankton which are autotrophic components of plankton community.
Q6. The ozone layer found high in the stratosphere:
Answer : Option B
Explaination / Solution:
The ozone layer found high in the stratosphere Protects against the suns harmful UV rays
Q7. Holes in the ozone layer are thought to have been caused by:
Answer : Option A
Explaination / Solution:
CFC’s causes hole in the ozone layer.
Q8. Which of the following gases is not a green house gas?
Answer : Option C
Explaination / Solution:
CO is not a green-house gas?
Q9. Photochemical smog occurs in warm, dry and sunny climate. One of the following is not amongst the components of photochemical smog, identify it.
Answer : Option D
Explaination / Solution:
is not the component of photochemical smog.
Q10. Which of the following statements is not true about classical smog?
Answer : Option B
Explaination / Solution:
Classical smog main components are not produced by the action of sunlight on emissions of automobiles and factories. It is actually the photochemical smog.
