Daily Static MCQs Quiz for UPSC, IAS, UPPSC/UPPCS, MPPSC. BPSC, RPSC & All State PSC Exams
Subject : Geography
1. Consider the following pairs:
| 1. Evaporation | Process of water changing from a liquid to a gaseous state |
| 2. Stratocumulus Clouds | Low-level layered clouds with some vertical development |
| 3. Conventional Rainfall | Rainfall caused by the uplift of air due to temperature differences |
How many of the above pairs are correctly matched?
(a) Only one pair
(b) Only two pairs
(c) All three pairs
(d) None
Answer: (C)
Explanation:
- Evaporation: The process of water changing from a liquid to a gaseous state is indeed evaporation. It occurs when water molecules gain enough energy to escape the liquid phase and enter the atmosphere as water vapor. Hence, pair 1 is correct.
- Stratocumulus Clouds: Stratocumulus clouds are low-level layered clouds with some vertical development. They often appear as a series of rounded, lumpy cloud masses. These clouds are typically found at lower altitudes and are known for their flat and uniform appearance. Hence, pair 2 is correct.
- Conventional Rainfall: Conventional rainfall, also known as convective rainfall, is indeed caused by the uplift of air due to temperature differences. When the surface of the Earth is heated, it warms the air above it, causing the air to rise. As the air rises, it cools and condenses, forming clouds and eventually leading to precipitation in the form of rainfall. Hence, pair 3 is correct.
Hence, option (c) is the correct answer.
2. Which of the following is not a factor that affects the amount of precipitation that falls in a particular area?
(a) Latitude
(b) Altitude
(c) Ocean currents
(d) The rotation of the Earth
Answer: (D)
Explanation: The rotation of the Earth does not affect the amount of precipitation that falls in a particular area. The other three options are all factors that affect the amount of precipitation that falls in a particular area.
Hence, option (d) is the correct answer.
3. Consider the following statements:
Statement-I: Inversion of temperature refers to a
reversal in the normal vertical temperature distribution of the atmosphere.
Statement-II: Inversions occur due to the presence of warm air masses
overlying cooler air masses.
Which of the following is correct in respect of the above statements?
(a) Both Statement-I and Statement-II are correct and
Statement-II, is the correct explanation of Statement-I
(b) Both Statement-I and Statement-II are correct but Statement-II, is not the
correct explanation for Statement-I
(c) Statement-I is correct, but Statement-II is incorrect
(d) Statement-I is incorrect, but Statement-II is correct
Answer: (A)
Explanation:
- An inversion of temperature refers to a reversal in the normal vertical temperature distribution of the atmosphere. Normally, the temperature of the air decreases with altitude. However, in an inversion, the temperature of the air increases with altitude. Hence, statement-I is correct.
- Inversions occur due to the presence of warm air masses overlying cooler air masses. This can happen when cold air sinks and warm air rises. Inversions can also occur when there is a lot of moisture in the air, as the moisture can trap heat and prevent the air from cooling down. Hence, statement-II is correct.
- Statement-II is the correct explanation of Statement-I because it explains why inversions occur.
Hence, option (a) is the correct answer.
4. Consider the following statements in respect of coral reefs:
1. They are formed through the mutualistic relationship
between coral polyps and algae.
2. They are vulnerable to environmental stressors such as rising sea
temperatures and pollution.
3. The Great Barrier Reef is the largest coral reef ecosystem in the world,
located off the coast of Australia.
How many of the statements given above are correct?
(a) Only one
(b) Only two
(c) All three
(d) None
Answer: (C)
Explanation:
- Coral polyps are tiny animals that secrete calcium carbonate to build a hard exoskeleton, which forms the structure of the reef. They have a mutualistic symbiotic relationship with photosynthetic algae called zooxanthellae, which live inside their tissues. The algae provide food through photosynthesis and in return, the coral polyps provide shelter and nutrients to the algae. Hence, statement 1 is correct.
- When the water temperatures rise, coral reefs can experience coral bleaching, a phenomenon where the coral expels the symbiotic algae, causing the coral to turn white and potentially leading to its death. Pollution from factors like sedimentation, nutrient runoff and chemical contaminants can also harm coral reefs. Hence, statement 2 is correct.
- The Great Barrier Reef being the largest coral reef ecosystem in the world, located off the coast of Australia, is correct. The Great Barrier Reef is renowned for its vast size and biodiversity, stretching over 2,300 kilometers (1,400 miles) along the northeastern coast of Australia. Hence, statement 3 is correct.
Hence, option (c) is the correct answer.
5. With reference to oceanic deep and trenches, consider the following pairs:
1. Mariana Trench - the Pacific Ocean
2. Puerto Rico Trench - the Atlantic Ocean
3. Java Trench - the Indian Ocean
4. Kuril-Kamchatka Trench - the Arctic Ocean
How many of the above pairs are correctly matched?
(a) Only one
(b) Only two
(c) Only three
(d) All four
Answer: (B)
Explanation:
- The Mariana Trench is located in the western Pacific Ocean and is the deepest part of the world's oceans. Hence, pair 1 is correctly matched.
- The Puerto Rico Trench is located in the Atlantic Ocean, to the north of Puerto Rico, and is the deepest part of the Atlantic Ocean. Hence, pair 2 is correctly matched.
- There is no such feature as the Java Trench in the Indian Ocean. The Java Trench is a non-existent trench. Hence, pair 3 is not correctly matched.
- The Kuril-Kamchatka Trench is located in the northwest Pacific Ocean, not the Arctic Ocean. It stretches from the Kuril Islands to the Kamchatka Peninsula. Hence, pair 4 is not correctly matched.
Hence, option (b) is the correct answer.
