ENVIRONMENT FOR UPSC PRELIMS 2020 , TEST-16

Q 1 . Consider the following statements:
1. Ozone is generally formed in upper stratosphere and sinks to lower stratosphere.
2. Ozone is measured in Dobson Unit in stratosphere.
Which of the above statements are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2

Q 2 . Consider the following statements:
1. Hypothetically, if we remove all the ozone from the stratosphere, the temperature of stratosphere will increase.
2. Green house gases are responsible for ozone hole in stratosphere.
3. Ozone holes are found only over the Polar Regions.
Which of the above statements are incorrect?
a) 1 and 2
b) 2 and 3
c) 1 and 3
d) All of the above

Q 3 . Consider the following statements:
1. Jet planes are a major contributor to Ozone depletion.
2. Jet planes fly through the stratosphere making holes in ozone layer with immense force.
Which of the above statement are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2

Q 4 . Ultraviolet radiations from sunlight cause a reaction that produces:
a) Fluorides
b) Ozone
c) Nitrogen dioxide
d) Sulphur dioxide

Q 5 . Helsinki Conference was associated with:
a) Conference on Environment and Cooperation in Europe, was an effort to reduce environmental tensions between the Russia and Western blocs
b) INDCs – Intended Nationally Determined Contributions – UNFCCC
c) To upend current barriers to sharing clinical data and insights on Nature Biotechnology
d) Elimination of CFC that causes ozone depletion

Q 6 . The ecological footprint is a measure of human demand on the Earth’s ecosystems. It measures-
1. How much of the biological capacity of the planet is demanded by a given human activity or population
2. Ecological Footprints is calculated for overall activity of a nation or population and activities such as industrialization etc.
3. The disadvantage of Ecological Footprint is that it cannot be calculated for individual people or area.
Select the incorrect statement/s
a) 1 and 2
b) Only 2
c) 1 and 3
d) Only 3

Q 7 . Which among the following statements are correct with regard to Paris Climate Agreement ?
1. The agreement facilitates enforcement of global GHGs reduction measures, adaptation and finance in the post-2020 i.e. in post Kyoto Protocol scenario.
2. All member countries agreed to work to limit global temperature rise to well below 2 degrees Celsius, and to strive for 1.5 degrees Celsius.
3. All member countries agreed to take into account the principle of equity (climate justice) and common but differentiated responsibilities (CBDR) and respective capabilities.
4. Developed countries will provide 100 billion dollars annually to the developing counterparts beginning in 2020 and it would increase with time.
Choose the appropriate code:
a) 1 and 4 only
b) 1, 3 and 4 only
c) 1 and 3 only
d) All of the above

Q 8 . Consider the following statements:
1. In Meeting of Parties (MoP) of Montreal Protocol at Kigali, HFCs have been included in the list of chemicals under Montreal Protocol.
2. HFCs are the severe Ozone depleting substances.
3. India has promised to completely stop the use and production of HFCs by 2020.
Which of the above statements are incorrect?
a) 1 only
b) 2 and 3
c) 3 only
d) All of the above

Q 9 . Consider the following statements
1. Blue carbon is the carbon captured by the world’s oceans and coastal ecosystems.
2. Blue Carbon Initiative is coordinated by Conservation International (CI), the International Union for Conservation of Nature (IUCN) only
3. Coastal blue carbon ecosystems are found along the coasts of every continent except Antarctica
Select the correct statements
a) 1 and 2
b) 2 and 3
c) 1 and 3
d) All of the above

Q 10 . Which of the following statements correctly explains ‘Nuclear Winter’?
a) It refers to the cool down period of nuclear reactor before new nuclear fuel is fed to the reactor.
b) It refers to a condition of post nuclear war when sky is covered with smoke and dust and does not allow sunlight to reach the surface. This causes a dip in temperature.
c) It refers to the areas of low temperature on stars (dark spot on Sun) when nuclear fusion gets slowed down.
d) It refers to gradual decrease of the time period of winter season in tropical areas.