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What are the advantages of fertigation in agriculture?
1. Controlling the alkalinity of irrigation water is possible.
2. Efficient application of Rock Phosphate and all other phosphatic fertilizers is possible.
3. Increased availability of nutrients to plants is possible.
4. Reduction in the leaching of chemical nutrients is possible.
Select the correct answer using the code given below:
UPSC 2020
1, 2 and 3 only
1, 2 and 4 only
1, 3 and 4 only
2, 3 and 4 only
With reference to Ocean Mean Temperature (OMT), which of the following statements is/are correct?
1. OMT is measured up to a depth of 26ºC isotherm which is 129 meters in the south-western Indian Ocean during January-March.
2. OMT collected during January-March can be used in assessing whether the amount of rainfall in monsoon will be less or more than a certain long-term mean.
Select the correct answer using the code given below:
UPSC 2020
Only 1
Only 2
Both 1 and 2
Neither 1 nor 2
With reference to chemical fertilizers in India, consider the following statements:
1. At present, the retail price of chemical fertilizers is market-driven and not administered by the Government.
2. Ammonia, which is an input of urea, is produced from natural gas.
3. Sulphur, which is a raw material for phosphoric acid fertilizer, is a by-product of oil refineries.
Which of the statements given above is/are correct?
UPSC 2020
1 only
2 and 3 only
2 only
1, 2 and 3
With reference to India’s Desert National Park, which of the following statements are correct?
1. It is spread over two districts.
2. There is no human habitation inside the Park.
3. It is one of the natural habitats of the Great Indian Bustard.
Select the correct answer using the code given below:
UPSC 2020
1 and 2 only
2 and 3 only
1 and 3 only
1, 2 and 3
Among the following Tiger Reserves, which one has the largest area under “Critical Tiger Habitat”?
UPSC 2020
Corbett
Ranthambore
Nagarjunasagar-Srisailam
Sundarbans
If a particular plant species is placed under Schedule VI of The Wildlife Protection Act, 1972, what is the implication?
UPSC 2020
A licence is required to cultivate that plant.
Such a plant cannot be cultivated under any circumstances.
It is a Genetically Modified crop plant.
Such a plant is invasive and harmful to the ecosystem.
According to India’s National Policy on Biofuels, which of the following can be used as raw materials for the production of biofuels?
1. Cassava
2. Damaged wheat grains
3. Groundnut seeds
4. Horse gram
5. Rotten potatoes
6. Sugar beet
Select the correct answer using the code given below:
UPSC 2020
1, 2, 5 and 6 only
1, 3, 4 and 6 only
2, 3, 4 and 5 only
1, 2, 3, 4, 5 and 6
Which of the following statements best describes the term ‘Social Cost of Carbon’?
UPSC 2020
It is a measure, in monetary value, of the long-term damage done by a tonne of CO₂ emissions in a given year.
requirement of fossil fuels for a country to provide goods and services to its citizens, based on the burning of those fuels.
efforts put in by a climate refugee to adapt to live in a new place.
contribution of an individual person to the carbon footprint on the planet Earth.
With reference to Indian elephants, consider the following statements:
1. The leader of an elephant group is a female.
2. The maximum gestation period can be 22 months.
3. An elephant can normally go on calving till the age of 40 years only.
4. Among the States in India, the highest elephant population is in Kerala.
Which of the statements given above is/are correct?
UPSC 2020
1 and 2 only
2 and 4 only
3 only
1, 3 and 4 only
Which of the following Protected Areas are located in Cauvery basin?
1. Nagarhole National Park
2. Papikonda National Park
3. Sathyamangalam Tiger Reserve
4. Wayanad Wildlife Sanctuary
Select the correct answer using the code given below:
UPSC 2020
1 and 2 only
3 and 4 only
1, 3 and 4 only
1, 2, 3 and 4
Which one of the following protected areas is well-known for the conservation of a sub-species of the Indian swamp deer (Barasingha) that thrives well on hard ground and is exclusively graminivorous?
UPSC 2020
Kanha National Park
Manas National Park
Mudumalai Wildlife Sanctuary
Tal Chhapar Wildlife Sanctuary
Steel slag can be the material for which of the following?
1. Construction of base road
2. Improvement of agricultural soil
3. Production of cement
Select the correct answer using the code given below:
UPSC 2020
1 and 2 only
2 and 3 only
1 and 3 only
1, 2 and 3
In rural road construction, the use of which of the following is preferred for ensuring environmental sustainability or to reduce carbon footprint?
1. Copper slag
2. Cold mix asphalt technology
3. Geotextiles
4. Hot mix asphalt technology
5. Portland cement
Select the correct answer using the code given below:
UPSC 2020
1, 2 and 3 only
2, 3 and 4 only
4 and 5 only
1 and 5 only
Consider the following statements:
1. Coal ash contains arsenic, lead and mercury.
2. Coal-fired power plants release sulphur dioxide and oxides of nitrogen into the environment.
3. High ash content is observed in Indian coal.
Which of the statements given above is/are correct?
UPSC 2020
1 only
2 and 3 only
3 only
1, 2 and 3
What is the use of biochar in farming?
1. Biochar can be used as a part of the growing medium in vertical farming.
2. When biochar is a part of the growing medium, it promotes the growth of nitrogen-fixing microorganisms.
3. When biochar is a part of the growing medium, it enables the growing medium to retain water for longer time.
Which of the statements given above is/are correct?
UPSC 2020
1 and 2 only
2 only
1 and 3 only
1, 2 and 3
Consider the following statements :
1. According to the Constitution of India, a person who is eligible to vote can be made a minister in a State for six months even if he/she is not a member of the Legislature of that State.
2. According to the Representation of People Act, 1951, a person convicted of a criminal offence and sentenced to imprisonment for five years is permanently disqualified from contesting an election even after his release from prison.