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Daily Quiz: July 21
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- Question 1 of 7
1. Question
1 pointsCategory: Geography & EnvironmentConsider the following pairs about the identified marine resources and their location:
Marine Resources – Location
- Phosphate sediment – Mangaluru and Chennai coasts
- Gas Hydrate – Andaman Sea
- Cobalt-bearing ferro-manganese crust – Mannar Basin off the Tamil Nadu coast
- Micro-manganese nodules – Lakshadweep Sea
Which of the above pair(s) is/are not matched correctly?
Correct
Option 2 and 3 are matched incorrectly. So, b is the correct answer.
The correct pairing is as follows:
Marine Resources Location Phosphate sediment Off Karwar, Mangaluru and Chennai coasts Gas Hydrate In the channel-levee system of Mannar Basin off the Tamil Nadu coast Cobalt-bearing ferro-manganese crust Andaman Sea Micro-manganese nodules Lakshadweep Sea Incorrect
Option 2 and 3 are matched incorrectly. So, b is the correct answer.
The correct pairing is as follows:
Marine Resources Location Phosphate sediment Off Karwar, Mangaluru and Chennai coasts Gas Hydrate In the channel-levee system of Mannar Basin off the Tamil Nadu coast Cobalt-bearing ferro-manganese crust Andaman Sea Micro-manganese nodules Lakshadweep Sea - Question 2 of 7
2. Question
1 pointsCategory: Geography & EnvironmentWhich of the following statement(s) about mangrove forests in the Sundarbans is/are incorrect?
- Erosion of mangroves in response to climate change can pose a serious threat to the carbon sequestration potential of the mangrove forests.
- Climate change and decrease in sea levels have contributed to the phenomenon of losing land, in the mangrove forests of the Sundarbans.
Correct
Statement 1 is correct – Erosion of mangroves in response to climate change and sea level rise poses a serious threat to the carbon sequestration potential and other ecosystem services of this mangrove forest in future.
Statement 2 is incorrect. Climate change and sea level rise (and not decrease) has contributed to the phenomenon of losing land, including mangrove forests in the Sundarbans.
More Details:
- There is less fresh water flow and sediment supply in the Indian part of the delta, so we have starvation of sediment and the rate of sea level rise is higher than sediment supply. Hence we are losing land, including mangrove forest.
- Sundarban is recognized as an UNESCO World Heritage Site.
Incorrect
Statement 1 is correct – Erosion of mangroves in response to climate change and sea level rise poses a serious threat to the carbon sequestration potential and other ecosystem services of this mangrove forest in future.
Statement 2 is incorrect. Climate change and sea level rise (and not decrease) has contributed to the phenomenon of losing land, including mangrove forests in the Sundarbans.
More Details:
- There is less fresh water flow and sediment supply in the Indian part of the delta, so we have starvation of sediment and the rate of sea level rise is higher than sediment supply. Hence we are losing land, including mangrove forest.
- Sundarban is recognized as an UNESCO World Heritage Site.
- Question 3 of 7
3. Question
1 pointsCategory: Geography & Environment‘Animal Discoveries 2016, New Species and Records’, brought out by the Zoological Survey of India and ‘Plant Discoveries 2016’, by the Botanical Survey of India. With respect to the same, kindly consider the following statement(s):
- The geographical distribution of the new plant species reveals that most discoveries were made in the Eastern Himalayas.
- India is one of the 17 mega-diversity countries and has more than 6% of the global fauna.
Which of the above statement(s) is/are correct?
Correct
Statement 1 is incorrect. The geographical distribution of the new plant species reveals that most discoveries were made in the Western Ghats (17%), followed by the Eastern Himalayas (15%), the Western Himalayas (13%), the Eastern Ghats (12%) and the west coast (8%).
Statement 2 is correct. India is one of the 17 megadiversity countries and has about 6.42% of the global fauna.
Incorrect
Statement 1 is incorrect. The geographical distribution of the new plant species reveals that most discoveries were made in the Western Ghats (17%), followed by the Eastern Himalayas (15%), the Western Himalayas (13%), the Eastern Ghats (12%) and the west coast (8%).
Statement 2 is correct. India is one of the 17 megadiversity countries and has about 6.42% of the global fauna.
- Question 4 of 7
4. Question
1 pointsCategory: Geography & EnvironmentWhich of the following type of soil has surface accumulation of biosphere reserves?
Correct
Peaty Soil is the right answer.
More about Peaty Soil:
- Peat is a type of soil made up of waterlogged partially-decomposed plant material including sphagnum moss and other acid-loving plants, which has built up over something like 10,000 years in poorly-drained wetland habitats.
- Peaty soil is dark brown or black in color, soft, easily compressed due to its high water content, and rich in organic matter.
- Although peat soil tends to be heavily saturated with water, once drained, it turns into a good growing medium.
- Peat contains acidic water, but growers use it to regulate soil chemistry or pH levels as well as an agent of disease control for the soil.
Incorrect
Peaty Soil is the right answer.
More about Peaty Soil:
- Peat is a type of soil made up of waterlogged partially-decomposed plant material including sphagnum moss and other acid-loving plants, which has built up over something like 10,000 years in poorly-drained wetland habitats.
- Peaty soil is dark brown or black in color, soft, easily compressed due to its high water content, and rich in organic matter.
- Although peat soil tends to be heavily saturated with water, once drained, it turns into a good growing medium.
- Peat contains acidic water, but growers use it to regulate soil chemistry or pH levels as well as an agent of disease control for the soil.
- Question 5 of 7
5. Question
1 pointsCategory: Geography & EnvironmentFor which of the following crops, the Green Revolution in India had limited impact?
Correct
Green Revolution in India had least impact on the increase in Pulse production.
Impact of Green Revolution on Cereal Production:
- The key achievement of the green revolution was boost in production of two major cereals viz. Wheat and rice. But it was also a major drawback.
- The revolution was mainly confined to High Yielding Varieties (HYV) cereals, mainly rice, wheat, maize and jowar.
- It did not cover other coarse cereals, millets and neither had it covered pulses.
Incorrect
Green Revolution in India had least impact on the increase in Pulse production.
Impact of Green Revolution on Cereal Production:
- The key achievement of the green revolution was boost in production of two major cereals viz. Wheat and rice. But it was also a major drawback.
- The revolution was mainly confined to High Yielding Varieties (HYV) cereals, mainly rice, wheat, maize and jowar.
- It did not cover other coarse cereals, millets and neither had it covered pulses.
- Question 6 of 7
6. Question
1 pointsCategory: Geography & EnvironmentWhich of the following is found in Karst region?
Correct
Hums are found in the Karst regions.
About Karst regions:
- Karst topography is a landscape formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum.
- It is characterized by underground drainage systems with sinkholes and caves.
- It has also been documented for more weathering-resistant rocks, such as quartzite, given the right conditions.
- Karst is a terrain with a characteristic relief and drainage arising mainly due to higher solubility of rock in natural water than is found elsewhere.
What are Hums?
These are curved relicts of limestone rocks after erosion.
Incorrect
Hums are found in the Karst regions.
About Karst regions:
- Karst topography is a landscape formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum.
- It is characterized by underground drainage systems with sinkholes and caves.
- It has also been documented for more weathering-resistant rocks, such as quartzite, given the right conditions.
- Karst is a terrain with a characteristic relief and drainage arising mainly due to higher solubility of rock in natural water than is found elsewhere.
What are Hums?
These are curved relicts of limestone rocks after erosion.
- Question 7 of 7
7. Question
1 pointsCategory: Geography & EnvironmentConsider the following statements about Bhitarkanika mangroves:
1. It is a Ramsar site which is located in the deltaic region of Vamsdhara and Subarnarekha rivers.
2. It has the highest density of Salt-Water Crocodiles in the Country.Which of the above statement(s) is/are incorrect?
Correct
Only Statement 1 is incorrect – It is a Ramsar site which is located in the deltaic region of Brahmani and Baitarni rivers.
About Bhitarkanika mangroves:
- The Bhitarkanika Mangroves are a mangrove wetland in India’s Odisha(Orissa) state.
- The Bhitarkanika Mangroves cover an area of 650 km² in the river delta of the Brahmani and Baitarani rivers.
Incorrect
Only Statement 1 is incorrect – It is a Ramsar site which is located in the deltaic region of Brahmani and Baitarni rivers.
About Bhitarkanika mangroves:
- The Bhitarkanika Mangroves are a mangrove wetland in India’s Odisha(Orissa) state.
- The Bhitarkanika Mangroves cover an area of 650 km² in the river delta of the Brahmani and Baitarani rivers.