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MCQOPTIONS
This section includes 2658 Mcqs, each offering curated multiple-choice questions to sharpen your UPSC IAS Exam knowledge and support exam preparation. Choose a topic below to get started.
| 2301. |
Which of the following is/are not correct? 1. The unit of measurement of Sun's radiation is Langley. 2. The incoming solar radiation to earth is 2 cal/cm2-min 3. The mean sea level pressure of atmosphere is 1013.2 bar. 4. We are normally not aware of atmosphere pressure because it acts in all directions. Select the correct answer from the codes given below: |
| A. | 1, 2, 3 and 4 |
| B. | 2, 3 and 4 |
| C. | 3 only |
| D. | None of these |
| Answer» D. None of these | |
| 2302. |
With reference to Torest Carbon Partnership Facility', which of the following statements is/are correct? 1. It is a global partnership of governments, businesses, civil society and indigenous peoples. 2. It provides financial aid to universities, individual scientists and institutions involved in scientific forestry research to develop eco-friendly and climate adaptation technologies for sustainable forest management. 3. It assists the countries in their REDD + (Reducing emissions from Deforestation+) efforts by providing them with financial And technical assistance. Select the correct answer using the code given below: |
| A. | 1 only |
| B. | 2 and 3 |
| C. | 1 and 3 only |
| D. | 1, 2 and 3 |
| Answer» D. 1, 2 and 3 | |
| 2303. |
Consider the following statements: 1. In equatorial regions the year is divided into four main seasons. 2. In Mediterranean region, summers receive more rainfall. 3. In China type climate, rainfall occurs throughout the year. 4. Tropical highlands exhibit vertical zonation of different climates. Which of these statements are correct? |
| A. | 1, 2, 3 and 4 |
| B. | 1, 2 and 3 only |
| C. | 1, 2 and 4 only |
| D. | 3 and 4 only |
| Answer» E. | |
| 2304. |
The humidity of air measured in percentage is called [NDA 2017-I] |
| A. | absolute humidity |
| B. | specific humidity |
| C. | relative humidity |
| D. | all of these |
| Answer» D. all of these | |
| 2305. |
Match list I with list II and select the correct answer using the code given below List I List II (Process) (Definition) A. Absorption 1. The reflection quality of a surface B. Albedo 2. Solar radiation which is intercepted by the earth. C. Refraction 3. The bending effect that occurs when insolation enters the atmosphere D. Insolation4. Assimilation and conversion of radiation from one form to another in a medium |
| A. | A-4 B-1 C-3 D-2 |
| B. | A-2 B-3 C-1 D-4 |
| C. | A-1 B-4 C-2 D-3 |
| D. | A-3 B-2 C-4 D-1 |
| Answer» B. A-2 B-3 C-1 D-4 | |
| 2306. |
Consider the following statements and select the correct answer using the code given below: 1. Wetlands are generally shallow water-bodies. 2. They are generally less than 3 meters in depth. 3. Red-tide occurs in tropical lakes 2. 4. Red-tide is a misnomer. |
| A. | 1, 2 and 3 are correct |
| B. | 1, 2 and 4 are correct |
| C. | 1, 23 and 4 are correct |
| D. | 1, 3 and 4 are correct |
| Answer» D. 1, 3 and 4 are correct | |
| 2307. |
Which of the following statements is not true of Trade Winds? |
| A. | They blow from the Horse latitudes to the Doldrums. |
| B. | They are deflected to the right to become South-East |
| C. | Trades in the southern hemisphere. |
| D. | They are constant in strength and direction. |
| Answer» C. Trades in the southern hemisphere. | |
| 2308. |
Which type of clouds does not indicate fair weather? |
| A. | Cumulus |
| B. | Cumulonimbus |
| C. | Cirrus |
| D. | Altocumulus |
| Answer» C. Cirrus | |
| 2309. |
Which one of the following statements is not correct about the Achanakmar-Amarkantak Biosphere Reserve? |
| A. | This biosphere reserve lies at the junction of Vindhyan and Satpura Mountain in the states of Madhya Pradesh and Chhattisgarh. |
| B. | Frequent fires are a major problem of this biosphere reserve. |
| C. | Its forest cover is least altered by man. |
| D. | Its flora includes mahua, tendu, and the fauna consists of leopard and sloth bear. |
| Answer» D. Its flora includes mahua, tendu, and the fauna consists of leopard and sloth bear. | |
| 2310. |
Which of the following Koppen's climate is based on precipitation and evaporation in place of temperature? |
| A. | D f c |
| B. | Aw |
| C. | B S h w |
| D. | C w g |
| Answer» D. C w g | |
| 2311. |
Examine the following statements and select the correct answer using the codes given below: 1. Interior parts of the continents experience higher annual range of temperature as compared to the coastal areas. 2. Thermal equator remains at the equator throughout the year. 3. Northern hemisphere experiences higher annual range of temperature than southern hemisphere. 4. Some parts of equatorial Africa experience higher diurnal range of temperature than the annual range of temperature. |
| A. | 1, 2 and 3 only |
| B. | 2, 3 and 4 only |
| C. | 1, 3 and 4 only |
| D. | 1, 2 and 4 only |
| Answer» D. 1, 2 and 4 only | |
| 2312. |
Consider the following statements 1. A hurricane acquires its spin from the Coriolis Effect. 2. The diameter of the hurricane decreases as it moves away from low lalitudes. 3. The diameter of a hurricane is never below 150 km. Which of the statements given above is/are correct? |
| A. | Only 1 |
| B. | 2 and 3 |
| C. | 1 and 3 |
| D. | All of these |
| Answer» E. | |
| 2313. |
What is the vapour pressure? |
| A. | The presence of vapour in air |
| B. | Barometric pressure |
| C. | Pressure only due to vapour in the air |
| D. | Pressure in the clouds |
| Answer» D. Pressure in the clouds | |
| 2314. |
The term 'underwater tropical rain forests' is associated with which of the following biosphere reserves? |
| A. | Sundarbans |
| B. | Gulf of Kachchh |
| C. | Great Nicobar |
| D. | Gulf of Mannar |
| Answer» E. | |
| 2315. |
Roaring forties are the |
| A. | High velocity trade winds |
| B. | High velocity westerly winds |
| C. | High velocity polar winds |
| D. | High magnitude tidal waves due to high wind velocity |
| Answer» C. High velocity polar winds | |
| 2316. |
Consider the following statements 1. Ozone is mostly found in the stratosphere 2. Ozone layer lies 25 to 30 km above the surface of the Earth 3. Ozone absorbs ultraviolet radiation from the Sun. 4. Ozone layer has no significance for life on the Earth Which of the statements given above is/are correct? |
| A. | 1 and 2 |
| B. | 1 and 3 |
| C. | 1, 2 and 3 |
| D. | 3 and 4 |
| Answer» D. 3 and 4 | |
| 2317. |
Which of the following sequences is correct for rainfall? [NDA/NA 2014-II] |
| A. | Slow ascent of air\[\to \]slow condensation \[\to \] heavy downpour |
| B. | Rapid ascent of air\[\to \]large raindrops\[\to \]heavy downpour |
| C. | Pressure decreased\[\to \]air compressed\[\to \]heavy downpour |
| D. | Descent of air\[\to \,\,\text{air}\]warmed\[\to \]heavy downpour |
| Answer» D. Descent of air\[\to \,\,\text{air}\]warmed\[\to \]heavy downpour | |
| 2318. |
Match List I with List II and select the correct answer using the code given below: List I (Endangered Species) List II (Country) (A) Aye-Aye I. Asia (B) Grizzly Bear 2. Australia (C) Giant Panda 3. Madagascar (D) Wombat 4. North America |
| A. | a-3 b-4 c-2 d-1 |
| B. | a-3 b-4 c-1 d-2 |
| C. | a-4 b-3 c-2 d-1 |
| D. | a-4 b-3 c-1 d-2 |
| Answer» C. a-4 b-3 c-2 d-1 | |
| 2319. |
Consider the following statements and select the correct answer using the code given below: 1. In the altitudinal zonation of the Himalayas, vegetation is found of all the terrestrial biomes of the world. 2. The alpine pastures are found in the Lesser Himalayas and the Siwaliks. 3. The lowest biodiversity is found in the Tundra Biome. |
| A. | 1 and 2 are correct |
| B. | 2 and 3 are correct |
| C. | 1 and 3 are correct |
| D. | 1, 2 and 3 are correct |
| Answer» C. 1 and 3 are correct | |
| 2320. |
Consider the following statements: I. Balance of heat received and emitted by the earth is called its heat budget. II. Less than half of the solar insulation received at the top of the atmosphere reaches the earth's surface. |
| A. | I is correct |
| B. | II is correct |
| C. | Both I and II are correct |
| D. | Neither I nor II is correct |
| Answer» B. II is correct | |
| 2321. |
Match list I with list II and select the correct answer using the code given below List I (Type of climate) List II (Region) A. Aw 1. Rain, shadow of Karnataka B. A m w 2. Thar Desert C. B S h w 3. West Bengal and Bihar D. B W h w 4. Malabar Coast. Code: |
| A. | A-3 B-4 C-2 D-1 |
| B. | A-3 B-4 C-1 D-2 |
| C. | A-2 B-1 C-4 D-3 |
| D. | A-2 B-4 C-1 D-3 |
| Answer» C. A-2 B-1 C-4 D-3 | |
| 2322. |
Which one of the following set of capital letters was used by Koppen in his classification of world climates? |
| A. | A, B, C, D. E, F |
| B. | A, B, C, E, H |
| C. | A, B, C, E, H, W, T |
| D. | A, B, C, D, E, H, S, W, T |
| Answer» E. | |
| 2323. |
Match list I with list II and select the correct answer using the code given below: List I (Climate) List II (Area) A. Dfc 1. Canada B. BWh 2. Sahara C. Af 3. Amazon Basin D. EF 4. Greenland |
| A. | A-1 B-2 C-3 D-4 |
| B. | A-2 B-3 C-4 D-1 |
| C. | A-4 B-2 C-1 D-3 |
| D. | A-3 B-4 C-2 D-1 |
| Answer» B. A-2 B-3 C-4 D-1 | |
| 2324. |
Horse latitudes lie within the atmospheric pressure belts of [2011-II] |
| A. | Polar high |
| B. | Equatorial low |
| C. | Sub-tropical high |
| D. | Sub-polar low |
| Answer» D. Sub-polar low | |
| 2325. |
Consider the following statements: 1. In the middle latitudes, east coast regions receive more rainfall than their western counterparts. 2. Windward slopes of the hills receive abundant rainfall but leeward slopes are almost dry. 3. In the tropics, west coasts are wetter than east coasts. 4. Precipitation is abundant in middle latitudes. Which of the above statements is/are correct? |
| A. | 1 only |
| B. | 2 only |
| C. | 1 and 2 only |
| D. | 3 and 4 only |
| Answer» C. 1 and 2 only | |
| 2326. |
Which of the following is not the feature of orographic rainfall? |
| A. | It requires a mountain barrier across the wind direction. |
| B. | Areas near the mountain slope receive the maximum rainfall. |
| C. | Windward slope gets maximum rainfall while leeward slope gets minimum rainfall. |
| D. | The windward slope is characterized by stratus clouds whereas leeward slopes are characterized by cumulus clouds. |
| Answer» E. | |
| 2327. |
Consider the following statements and select the correct answer using the code given below: 1. In India, dry farming is practised in areas where the annual rainfall is below 75 cm. 2. Areas recording more than 100 cm rainfall is known as rain-fed farming. 3. Coarse grains and oilseeds are the main crops of dry-farming areas in India Code: |
| A. | 1, 2 and 3 are correct |
| B. | 1 and 3 are correct |
| C. | 2 and 3 are correct |
| D. | 1 and 2 are correct |
| Answer» B. 1 and 3 are correct | |
| 2328. |
Which one is an anticyclone? |
| A. | Low pressure system with clockwise winds in the northern hemisphere. |
| B. | High pressure system with clockwise winds in the northern hemisphere. |
| C. | Low pressure system with clockwise winds in southern hemisphere. |
| D. | High pressure system with clockwise winds in southern hemisphere. |
| Answer» C. Low pressure system with clockwise winds in southern hemisphere. | |
| 2329. |
The largest area prone to water logging is in the state of: |
| A. | Assam |
| B. | Bihar |
| C. | Punjab |
| D. | West Bengal |
| Answer» C. Punjab | |
| 2330. |
Local wind blowing north of Adriatic coast region is known as |
| A. | Bora |
| B. | Blizzard |
| C. | Brickfield |
| D. | Mistral |
| Answer» B. Blizzard | |
| 2331. |
Match list I with list II and select the correct answer using the code given below: List I (Atmospheric layer) List II (Special feature) A. Troposphere 1. Mother of pearls B. Stratosphere 2. Normal lapse rate C. Ionosphere 3. Aurora Borealis D. Mesosphere 4. Rise in temperature |
| A. | A-4 B-2C-1D-3 |
| B. | A-3B-4C-1D-2 |
| C. | A-2B-1C-3D-4 |
| D. | A-1B-3C-4D-2 |
| Answer» D. A-1B-3C-4D-2 | |
| 2332. |
Which one of the following represents a source of atmospheric energy? [UGC (Geog) 2016] |
| A. | Infrared radiation emitted downward from clouds |
| B. | Visible radiation scattered upward into the space |
| C. | Latent heat released |
| D. | Albedo of the earth and the atmosphere |
| Answer» D. Albedo of the earth and the atmosphere | |
| 2333. |
\[\frac{\text{Amount}\,\text{of}\,\text{water}\,\text{vapour}\,\text{actually}\,\text{present}\,\text{in}\,\text{the}\,\text{air}}{\text{Amount}\,\text{of}\,\text{water}\,\text{vapour}\,\text{required}\,\text{to}\,\text{saturate}\,\text{the}\,\text{air}}\text{ }\!\!\times\!\!\text{ 100}\] The above equation represents the |
| A. | Absolute Humidity |
| B. | Specific Humidity |
| C. | Relative Humidity |
| D. | Optimum Humidity |
| Answer» D. Optimum Humidity | |
| 2334. |
Consider the following statements: 1. In a temperate cyclone, warm air sector is surrounded by cold air sector. 2. A fully grown temperate cyclone is circular in slope. Which of the above statements is/are correct? |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 3 |
| Answer» B. 2 only | |
| 2335. |
Melanistic Tigers, Asian Elephants, Ruddy Mongoose and Giant Squirrel are the characteristic fauna of which of the following biosphere reserves? |
| A. | Manas |
| B. | Seshachalam |
| C. | Simlipal |
| D. | Sundarban |
| Answer» D. Sundarban | |
| 2336. |
Match the following: List I (Type of Rainfall) List II (Area) A. Convectional rainfall 1. Western Europe B. Orographic rainfall 2. Western Ghats C. Cyclonic rainfall of Western Ghats 3. Areas to the east D. Rainshadow 4. Equatorial region |
| A. | A-1 B-2 C-3 D-4 |
| B. | A-4 B-2 C-1 D-3 |
| C. | A-2 B-3 C-1 D-4 |
| D. | A-4 B-3 C-2 D-1 |
| Answer» C. A-2 B-3 C-1 D-4 | |
| 2337. |
Consider the following statements and select the correct answer using the code given below: 1. Marshlands are dominated by natural vegetation like grasses and reeds. 2. Wetlands are the areas of poor surface drainage. 3. Mangroves flourish in muddy water of tropical countries. |
| A. | 1 and 2 are correct |
| B. | 1 and 3 are correct |
| C. | 2 and 3 are correct |
| D. | 1, 2 and 3 are correct |
| Answer» E. | |
| 2338. |
Cloudy nights are warmer compared to clear cloudless nights because clouds: |
| A. | Prevent cold waves from the sky from descending on earth. |
| B. | Reflect back the heat given off by earth |
| C. | Produce heat and radiate it towards earth |
| D. | Absorb heat from the atmosphere and send it towards earth. |
| Answer» C. Produce heat and radiate it towards earth | |
| 2339. |
La Nina is suspected to have caused recent floods in Australia. How is La Nina different from El Nino? 1. La Nina is characterized by unusually cold ocean temperature in equatorial Indian Ocean whereas El Nino is characterized by unusually warm ocean temperature in the equatorial Pacific Ocean. 2. El Nino has adverse effect on monsoon climate Which of the statements given above is/are correct? |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» E. | |
| 2340. |
Consider the following statements about the 'Roaring Forties' 1. They blow uninterrupted in the Northern and Southern Hemisphere. 2. They blow with great strength and constancy. 3. Their direction is generally from north- west to south-east in the southern hemisphere 4. Overcast skies, rain and raw weather are generally associated with them. Which of the above statements are correct? |
| A. | 1, 2 and 3 only |
| B. | 2, 3 and 4 only |
| C. | 1, 3 and 4 only |
| D. | 1, 2 and 4 only |
| Answer» C. 1, 3 and 4 only | |
| 2341. |
Winter rains in North and North-West India are generally associated with the phenomenon of : |
| A. | retreating monsoon |
| B. | temperate cyclones |
| C. | local thunderstorms |
| D. | shift in jet stream movement |
| Answer» C. local thunderstorms | |
| 2342. |
Consider the following statements I. Increasing use of the chlorofluorocarbons has resulted in depletion of ozone layer in the atmosphere. II. The largest ozone hole is found on the Arctic Ocean |
| A. | Statements I and II are correct |
| B. | Neither I nor II is correct |
| C. | Only I is correct |
| D. | Only II is correct |
| Answer» D. Only II is correct | |
| 2343. |
Match the following List I (Wind) List II (Characteristics) A. Chinook 1. Snow eater B. Khamsin 2. Wind of fifty days C. Sirocco 3. Cause 'blood rain' in Italy D. Harmattan 4. Known as doctor in Guinea |
| A. | A-1 B-2 C-3 D-4 |
| B. | A-4 B-3 C-2 D-1 |
| C. | A-3 B-2 C-4 D-1 |
| D. | A-2 B-4 C-1 D-3 |
| Answer» B. A-4 B-3 C-2 D-1 | |
| 2344. |
India is the leading producer of: |
| A. | Acid-lime, banana, mango and sapota |
| B. | Acid-lime, banana, mango and guava |
| C. | Banana, mango, litchi and papaya |
| D. | Banana, mango, guava and peach |
| Answer» B. Acid-lime, banana, mango and guava | |
| 2345. |
Which one of the following is the national aquatic animal of India? |
| A. | Saltwater crocodile |
| B. | Olive Ridley Turtle |
| C. | Gangetic Dolphin |
| D. | Gharial |
| Answer» D. Gharial | |
| 2346. |
Consider the following statements: 1. Regular fall of temperature with height in the troposphere is known as normal lapse rate. 2. Rise in temperature with height is called inversion of temperature. Which of the above statements is/are correct? |
| A. | 1 only |
| B. | 2 only |
| C. | both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» D. Neither 1 nor 2 | |
| 2347. |
Which layer of atmosphere is vital for teller communications? |
| A. | Troposphere |
| B. | Thermosphere |
| C. | Stratosphere |
| D. | Ionosphere |
| Answer» E. | |
| 2348. |
In India, the area under cultivation is about: |
| A. | 42% |
| B. | 45% |
| C. | 48 % |
| D. | 51 % |
| Answer» D. 51 % | |
| 2349. |
Match List I wish List II and select the correct answer using the code given below: List I (Conservation Act) List II (Year) (a) Air Pollution Act 1. 1972 (b) Environmental Protection Act 2. 1981 (c) Wildlife Protection Act 3. 1986 (d) Water Pollution Act 4. 1974 |
| A. | a-3 b-4 c-2 d-1 |
| B. | a-3 b-4 c-1 d-2 |
| C. | a-2 b-3 c-4 d-1 |
| D. | a-2 b-3 c-1 d-4 |
| Answer» E. | |
| 2350. |
Match the following List-I (Wind type) List-II (Regions where they) A. Brick fielders 1. N. California B. Sirocco 2. Australia C. Bergs 3. Mediterranean D. Northers 4. Africa |
| A. | A-2 B-3 C-1 D-4 |
| B. | A-2 B-3 C-4 D-1 |
| C. | A-3 B-1 C-2 D-4 |
| D. | A-2 B-1 C-3 D-4 |
| Answer» C. A-3 B-1 C-2 D-4 | |