Questions for mid semester exam students are requested to follow this model question

1.       Calculate the climate sensitivity if change in temperature is 6 °C, while the change in solar forcing is 7.1 W/m² 

a)      0.70 ⁰C(W/m²)⁻¹

b)      0.85 ⁰C (W/m²)⁻¹

c)       1.18 ⁰C (W/m²)⁻¹

d)      1.1 ⁰C (W/m²)⁻¹

ANs: b) 0.85 ⁰C (W/m²)⁻¹

2.       Global warming potential is calculated in terms of

a)    Factor of methane

b)    Factor of nitrous oxide

c)     Factor of oxygen

d)    Factor of carbon-di-oxide

3.       Atmospheric concentration of carbon-di-oxide  in 2012 is

a)      240 ppm

b)      340 ppm

c)       392 ppm   

d)      420 ppm

Ans : C. 392ppm

4.       Forcing due to carbon-di-oxide is

a.     Logarithmic

b.    Square root dependence

c.     Linear

d.    Algeberic

Ans: a. Logarithmic

5.       Life time of water vapour in the atmosphere is

a.     1 year

b.    9 days

c.     One month

d.    One week

Ans:b. 9 days

6.       Carbon-di-oxide is fixed from atmosphere by the  process called

a.    Respiration

b.    Photosynthesis

c.     Incineration

d.    Pyrolysis

Ans: b. Photosynthesis

7.        More amount of carbon is stocked/stored in

a)      Trees

b)      Grasses

c)       Soil

d)      Shrubs

Ans: c. Soil

8.       Calcium carbonate present in the soil is an example for

a)      Organic carbon

b)      Inorganic carbon

c)       Total carbon

d)      Dissolved carbon

Ans: b. Inorganic carbon

9.       Manufacture of cement is related to emission of

a)      Methane

b)      Nitrous oxide

c)       Water vapour

d)      carbon-di-oxide 

Ans:d. Carbon-di-oxide

10.   An  instrument is to produce electricity to combat climate change mechanism

a)      Thermal power unit

b)      Atomic power

c)       Wind mill

d)      Biomass based reactor

Ans:C.  Wind mill

11.   Methane release is more 

a)      Traditional method of paddy cultivation (Continuous submergence )

b)      SRI Technique

c)       Biomass burning 

d)      Ploughing of soil

Ans :a. Traditional method of paddy cultivation (Continuous submergence )

12.   Growing of crops will be recommended to adopt to climate change

a)      Paddy

b)      Vegetables

c)       Minor millets

d)      Tobacco

Ans: Minor millets

 

13.   Composting of sugarcane trash or agricultural residues is recommended to 

a)      To increase Carbon-di-oxide release from soil

b)      To increase organic carbon stock in the soil

c)       To increase methane release

d)      To speed up global warming

Ans: b. To increase organic carbon content of soil

14.   The technology that suits to remote area that helps to mitigate climate change 

a)      Electric bike

b)      Solar light electricity

c)       Atomic energy

d)      CFL bulbs

Ans: D. Solar light energy

15.   To preserve very big trees from cutting in developmental areas like road, areas meant for residential, industrial etc.,

a)      Planting new trees

b)      Tree transplanting

c)       Tree Cloning

d)      Tree ring assessment 

Ans: b) Tree transplanting

16.   Atmosphere is occupied mostly by 

a)      Carbon-di-oxide

b)      Nitrogen

c)       Oxygen

d)      Methane

Ans: b. Nitrogen

True /false

1.      The layer present immediate to earth is (0 to 12 km) is stratosphere (False)

2.       A gradual increase in cold in a region will lead to earlier flowering and fruiting times (False)

3.       Dendroclimatology is the analysis of tree ring growth patterns to determine past climate variations (True)

4.       The major atmospheric gases (oxygen and nitrogen) are transparent to incoming sunlight (True)

5.       In the ozone layer ozone concentrations are about 2 to 8 ppm (True)

6.       Nitrous oxide in the atmosphere has a life time of 114 years (True)

7.       Use of more organic manures and green manures will enhance further global warming (False)

8.       Organic content of Tamil Nadu Soils are >0.9% (False)

9.       Application of synthetic fertilizers is method to combat climate change (False)

10.   Global cooling may also be caused due to volcanoes (True)

11.    Kyoto-protocol is related to ozone depletion (False)

12.    Climate change refers to change in weather pattern in a short time preferably with in day (False)

13.   Introduction of four stroke engines will decrease the global surface temperatures than two stroke engine (true)

14.   Poor people are mostly affected by impact of climate change (True)

15.   Organic carbon content of the soil can be estimated by following Walkley and Black method (True)

Write short notes on

1. Global warming

2. Green house effect

3. Historical metrics of climate change

4. Climate forcing mechanisms

5. Faint young Sun paradox

6.  Radiative forcing