INSIGHTS STATIC QUIZ 2020 - 21
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Question 1 of 5
1. Question
Which of the following adds/add nitrogen to the soil?
- Burning of coal by man
- Death of vegetation
- Excretion of urea by animals
Select the correct answer code.
Correct
Solution: c)
- Burning of coal by man is the main source of atmospheric carbon dioxide. It has nothing to do with adding nitrogen to the soil.
- Nitrogenous waste products of living organisms such as urea and dead remain of organisms are converted back into inorganic ammonia by the bacteria.
Incorrect
Solution: c)
- Burning of coal by man is the main source of atmospheric carbon dioxide. It has nothing to do with adding nitrogen to the soil.
- Nitrogenous waste products of living organisms such as urea and dead remain of organisms are converted back into inorganic ammonia by the bacteria.
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Question 2 of 5
2. Question
Which of these ecosystems would sequester most carbon for a given unit of area?
Correct
Solution: b)
Saltmarshes are one of the key coastal ‘blue carbon’ habitats, recognised for their ability to store carbon within above- and below-ground biomass and sediments.
Saltmarshes sequester carbon at a rate two to four times greater than that recorded for mature tropical forests.
Incorrect
Solution: b)
Saltmarshes are one of the key coastal ‘blue carbon’ habitats, recognised for their ability to store carbon within above- and below-ground biomass and sediments.
Saltmarshes sequester carbon at a rate two to four times greater than that recorded for mature tropical forests.
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Question 3 of 5
3. Question
Carbon Capture Utilization Storage (CCUS) is the process of
Correct
Solution: c)
Carbon capture utilization storage is the process of capturing waste carbon dioxide (CO2) from large point sources, such as fossil fuel power plants, and either transporting it to a storage site where it will not enter the atmosphere, normally an underground geological formation , or reusing it.
In Carbon Capture and Storage (CCS), emissions are forced into underground rocks at great cost and no economic benefit while CCUS aims at using CO2 emissions by exploiting the resource itself and creating new markets around it.
Incorrect
Solution: c)
Carbon capture utilization storage is the process of capturing waste carbon dioxide (CO2) from large point sources, such as fossil fuel power plants, and either transporting it to a storage site where it will not enter the atmosphere, normally an underground geological formation , or reusing it.
In Carbon Capture and Storage (CCS), emissions are forced into underground rocks at great cost and no economic benefit while CCUS aims at using CO2 emissions by exploiting the resource itself and creating new markets around it.
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Question 4 of 5
4. Question
Ocean acts as a large carbon sink on earth due to
Correct
Solution: d)
Oceans are one of the largest carbon sinks on earth because of their large geographical coverage and presence of rich population of phytoplankton and seagrass, which act as carbon sink.
Carbon dioxide readily dissolves in water and the oceans provide a huge reservoir of carbon. Across the world’s oceans there is a continual cycle of equilibration of dissolved carbon dioxide in water with carbon dioxide in the atmosphere.
The difference in partial pressure of the CO2 between seawater and air facilitate gaseous exchange. This allows atmospheric CO2 to dissolve in seawater.
The carbon dioxide which dissolves in our oceans occurs in three main forms. Aside from the normal carbon dioxide form, it is also found as bicarbonate and carbonate ions.
Incorrect
Solution: d)
Oceans are one of the largest carbon sinks on earth because of their large geographical coverage and presence of rich population of phytoplankton and seagrass, which act as carbon sink.
Carbon dioxide readily dissolves in water and the oceans provide a huge reservoir of carbon. Across the world’s oceans there is a continual cycle of equilibration of dissolved carbon dioxide in water with carbon dioxide in the atmosphere.
The difference in partial pressure of the CO2 between seawater and air facilitate gaseous exchange. This allows atmospheric CO2 to dissolve in seawater.
The carbon dioxide which dissolves in our oceans occurs in three main forms. Aside from the normal carbon dioxide form, it is also found as bicarbonate and carbonate ions.
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Question 5 of 5
5. Question
Which of the following are the Geoengineering techniques designed to tackle the effects of climate change?
- Adding large quantities of lime to the Ocean water to increase the amount of CO2 absorption by the oceans.
- Floating thousands of tiny mirrors in space between Earth and the sun.
- Using unmanned ships to increase above-ocean cloud cover by spraying sea water into the air.
- Artificial treesthat pull the CO2 from the atmosphere using plastic polymers.
Select the correct answer code:
Correct
Solution: d)
Geoengineering schemes are projects designed to tackle the effects of climate change directly, usually by removing CO2 from the air or limiting the amount of sunlight reaching the planet’s surface.
The first category of scheme – those designed to remove CO2 from the air – include machines (sometimes called “artificial trees”) that pull the gas from the atmosphere using plastic polymers. Other proposals seek to increase the amount of CO2 absorbed by the oceans – for example by adding large quantities of lime to the water.
In the second category – schemes designed to reduce the amount of sunlight reaching Earth – proposals include firing sulphate aerosols into the stratosphere to reflect sunlight back to space; using unmanned ships to increase above-ocean cloud cover by spraying sea water into the air; painting the world’s roofs white to increase reflectivity; and even floating thousands of tiny mirrors in space between Earth and the sun.
Incorrect
Solution: d)
Geoengineering schemes are projects designed to tackle the effects of climate change directly, usually by removing CO2 from the air or limiting the amount of sunlight reaching the planet’s surface.
The first category of scheme – those designed to remove CO2 from the air – include machines (sometimes called “artificial trees”) that pull the gas from the atmosphere using plastic polymers. Other proposals seek to increase the amount of CO2 absorbed by the oceans – for example by adding large quantities of lime to the water.
In the second category – schemes designed to reduce the amount of sunlight reaching Earth – proposals include firing sulphate aerosols into the stratosphere to reflect sunlight back to space; using unmanned ships to increase above-ocean cloud cover by spraying sea water into the air; painting the world’s roofs white to increase reflectivity; and even floating thousands of tiny mirrors in space between Earth and the sun.
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