UPSC IAS Prelims GS Paper 1 - 2023 Solutions, Answer Key & Explanations (Q. 26 to 50) Part 2 of 4
Chapters:
0:00 Introduction & Q.26 Mushroom Properties
0:46 Q.27 Indian Squirrel Behavior
1:07 Q.28 Microorganisms in Extreme Environments
1:42 Q.29 Orangutan Tool Usage
2:32 Q.30 Applications of Hydrofluorocarbons
Are you struggling to find accurate explanations for the science and environment questions in the 2023 civil services exam? This video provides comprehensive step-by-step solutions and answer keys for Questions 26 to 50 of the UPSC IAS Prelims GS Paper 1 - 2023 exam. We break down complex topics such as mushroom properties, psychrophiles, primate tool usage, and the applications of hydrofluorocarbons to help you build solid conceptual clarity.
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Q. 26. Consider the following statement:
1. Some mushrooms have medicinal properties.
2. Some mushrooms have psycho - active properties.
3. Some mushrooms have insecticidal properties
4. Some mushrooms have bioluminescent properties
Q. 27 Consider the following statements regarding the Indian squirrels:
1. They build nests by making burrows in the ground.
2. They store their food materials like nuts and seeds in the ground.
3. They are omnivorous.
Q. 28. Consider the following statements:
1. Some microorganisms can grow in environments with temperature above the boiling point of water.
2. Some microorganisms can grow in environments with temperature below the freezing point of water.
3. Some microorganisms can grow in highly acidic environment with a pH below 3.
Q. 29. Which one of the following makes a tool with a stick to scrape insects from a hole in a tree or a log of wood?
(b) Orangutan
Q. 30. Consider the following:
1. Aerosols
2. Foam agents
3. Fire retardants
4. Lubricants
Q. 31. Consider the following statements
1. Jhelum River passes through Wular Lake.
2. Krishna River directly feeds Kolleru Lake
3. Meandering of Gandak River formed Kanwar Lake.
Q 32 How many of the above pairs are correctly matched?
Q. 33. Consider the following trees:
I. Jackfruit (Artocarpus heterophyllus)
2. Mahua (Madhuca indica)
3. Teak Tectona grandis)
Q. 34. Consider the following statements:
1. India has more arable area than China.
2. The proportion of irrigated area is more in India as compared to China.
3. The average productivity per hectare in Indian agriculture is higher than that in China.
Q. 35. Which one of the following is the best example of repeated falls in sea level, giving rise to present-day extensive marshland?
(a) Bhitarkanika Mangroves
(b) Marakkanam Salt Pans
(c) Naupada Swamp
(d) Rann of Kutch
Q. 36. Ilmenite and rutile, abundantly available in certain coastal tracts of India, are rich sources of which one of the following?
(a) Aluminium
(b) Copper
(c) Iron
(d) Titanium
Q. 37. About three-fourths of world's cobalt, a metal required for the manufacture of batteries for electric motor vehicles, is produced by
(a) Argentina
(b) Botswana
(c) The Democratic Republic of the Congo
(d) Kazakhstan
Q. 38. Which one of the following is a part of the Congo Basin?
(a) Cameroon
(b) Nigeria
(c) South Sudan
(d) Uganda
Q. 39. Consider the following statement:
1. Amarkantak Hills are at the confluence of Vindhya and Sahyadri Ranges.
2. Biligirirangan Hills constitute the easternmost part of Satpura Range.
3. Seshachalam Hills constitute the southernmost part of Western Ghats.
Q. 40. With reference to India’s projects on connectivity, consider the following statements:
1. East-West Corridor under Golden Quadrilateral Project connects Dibrugarh and Surat.
2. Trilateral Highway connects Moreh in Manipur and Chiang Mai in Thailand via Myanmar.
3. Bangladesh - China - India - Myanmar Economic Corridor connects Varanasi in Uttar Pradesh with Kunming in China.
Q. 41. Consider the following statement:
Interest income from the deposits in Infrastructure Investment Trusts (InvITs) distributed to their investors is exempted from tax, but the dividend is taxable.
InvITs are recognized as borrowers under the Securitization and Reconstruction of Financial Assets and Enforcement of Security Interest Act, 2002.
42. Consider the following statements:
In the post-pandemic recent past, many Central Banks worldwide had carried out interest rate hikes.
Central Banks generally assume that they have the ability to counteract the rising consumer prices via monetary policy means.
Q. 43.
Carbon markets are likely to be one of the most widespread tools in the fight against climate change.
Carbon markets transfer resources from the private sector to the Stat...