Practise UPSC MCQs with explanations

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. How many of the above statements are correct?

Consider the following statements: 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. How many of the above statements are correct?

Which of the following organisms perform waggle dance for others of their kin to indicate the direction and the distance to a source of their food?

Consider the following fauna: 1. Lion-tailed Macaque 2. Malabar Civet 3. Sambar Deer How many of the above are generally nocturnal or most active after sunset?

'Invasive Species Specialist Group' (that develops Global Invasive Species Database) belongs to which one of the following organizations?

Consider the following statements: Statement-I: Marsupials are not naturally found in India. Statement-II: Marsupials can thrive only in montane grasslands with no predators. Which one of the following is correct in respect of the above statements?

Consider the following statements: Statement-I: India, despite having uranium deposits, depends on coal for most of its electricity production. Statement-II: Uranium, enriched to the extent of at least 60%, is required for the production of electricity. Which one of the following is correct in respect of the above statements?

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. How many of the above statements are correct?

Consider the following statements: 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. How many of the statements given above are correct?

Which one of the following is a part of the Congo Basin?

About three-fourths of world's cobalt, a metal required for the manufacture of batteries for electric motor vehicles, is produced by

Ilmenite and rutile, abundantly available in certain coastal tracts of India, are rich sources of which one of the following?

Which one of the following is the best example of repeated falls in sea level, giving rise to present-day extensive marshland?

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. How many of the above statements are correct?

Consider the following trees: 1. Jackfruit (Artocarpus heterophyllus) 2. Mahua (Madhuca indica) 3. Teak (Tectona grandis) How many of the above are deciduous trees?

Consider the following pairs — Port : Well known as 1. Kamarajar Port : First major port in India registered as a company 2. Mundra Port : Largest privately owned port in India 3. Visakhapatnam Port : Largest container port in India How many of the above pairs are correctly matched?

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. How many of the statements given above are correct?

If a major solar storm (solar flare) reaches the Earth, which of the following are the possible effects on the Earth? 1. GPS and navigation systems could fail. 2. Tsunamis could occur at equatorial regions. 3. Power grids could be damaged. 4. Intense auroras could occur over much of the Earth. 5. Forest fires could take place over much of the planet. 6. Orbits of the satellites could be disturbed. 7. Shortwave radio communication of the aircraft flying over polar regions could be interrupted. Select the correct answer using the code given below:

In the context of vaccines manufactured to prevent COVID-19 pandemic, consider the following statements: 1. The Serum Institute of India produced COVID-19 vaccine named Covishield using mRNA platform. 2. Sputnik V vaccine is manufactured using vector based platform. 3. COVAXIN is an inactivated pathogen based vaccine. Which of the statements given above are correct?

Consider the following statements in respect of probiotics: 1. Probiotics are made of both bacteria and yeast. 2. The organisms in probiotics are found in foods we ingest but they do not naturally occur in our gut. 3. Probiotics help in the digestion of milk sugars. Which of the statements given above is/are correct?