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With reference to Shellear fish, consider the following statements:
It is a marine species found in the Indian Ocean.
It has specialised fin structures enabling vertical climbing.

With reference to INS Sunayna, consider the following statements:
It is an indigenously built offshore patrol vessel.
It is designed for coastal and ocean surveillance operations.

With reference to Oak trees in India, consider the following statements:
They are dominant species in moist temperate Himalayan forests.
They contribute to groundwater recharge and watershed protection.

With reference to Sanderling, consider the following statements:
It is a migratory shorebird.
It feeds primarily on plant material.
It is found across multiple continents.

With reference to Angola, consider the following statements:
It is located on the southwestern coast of Africa.
The Benguela Current influences its climate.
It is a landlocked country.

Mega Quiz Correct Answer with Explanation

Q. With reference to Shellear fish, consider the following statements:
1. It is a marine species found in the Indian Ocean.
2. It has specialised fin structures enabling vertical climbing.
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 : b
Explanation:
Statement 1 is incorrect. Shellear fish is a freshwater species found in the Congo Basin. It is not marine and does not inhabit oceans. It is adapted to riverine ecosystems. This is a typical UPSC trap involving habitat confusion.
Statement 2 is correct. The fish has specialised structures such as hook-like projections and strong muscles. These allow it to climb vertical waterfalls. This adaptation helps it access upstream habitats. It reduces competition and predation.
Q. With reference to INS Sunayna, consider the following statements:
1. It is an indigenously built offshore patrol vessel.
2. It is designed for coastal and ocean surveillance operations.
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 : c
Explanation:
Statement 1 is correct. INS Sunayna is an indigenously designed and built vessel by Goa Shipyard Limited. It is part of India’s push for self-reliance in defence manufacturing. Indigenous design enhances strategic autonomy. It is part of the Saryu class.
Statement 2 is correct. The vessel is designed for coastal and offshore patrolling, surveillance and escort duties. It helps secure sea lines of communication. It also supports maritime security operations. Its multifunctional role is important in naval operations.
Q. With reference to Oak trees in India, consider the following statements:
1. They are dominant species in moist temperate Himalayan forests.
2. They contribute to groundwater recharge and watershed protection.
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 : c
Explanation:
Statement 1 is correct. Oak species dominate moist temperate forests in the Himalayan region. They are climax vegetation and support diverse ecosystems. They are adapted to temperate climatic conditions. They are widely found in Uttarakhand.
Statement 2 is correct. Oak forests help in water conservation and recharge of springs. Their root systems stabilise soil and prevent erosion. They play a major role in watershed management. They are crucial for ecological sustainability.
Q9. With reference to Sanderling, consider the following statements:
1. It is a migratory shorebird.
2. It feeds primarily on plant material.
3. It is found across multiple continents.
Which of the statements given above is/are correct?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Answer : c
Explanation:
Statement 1 is correct. Sanderling is a migratory bird travelling long distances between breeding and wintering grounds. Migration is a key behavioural trait. It is often seen along coasts and wetlands.
Statement 2 is incorrect. It is carnivorous and feeds on small invertebrates such as crabs and molluscs. It does not primarily feed on plant material. Diet-based traps are common in UPSC.
Statement 3 is correct. It is widely distributed across continents including North America, Europe, Asia and Africa. Its migratory nature supports this wide distribution. It is a global species.
Q. With reference to Angola, consider the following statements:
1. It is located on the southwestern coast of Africa.
2. The Benguela Current influences its climate.
3. It is a landlocked country.
Which of the statements given above is/are correct?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

Answer : a
Explanation:
Statement 1 is correct. Angola is located on the southwestern Atlantic coast of Africa. It has access to the ocean. Its location is important for trade and energy exports.
Statement 2 is correct. The cold Benguela Current influences Angola’s climate. It moderates temperatures and affects rainfall patterns. Ocean currents are key climatic factors.
Statement 3 is incorrect. Angola is not landlocked as it has a coastline. This is a common geographical trap. Understanding basic geography is essential.

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