SSC CGL 2025 PYQ — Question 2

The correct answer is option 4 i.e. 2, 1, 3, 4. 

Logical Arrangement:

1. (2) Autotrophs are organisms that can produce their own food from inorganic substances using light or chemical energy.

   • This is the introductory sentence. It provides the fundamental definition of the subject (autotrophs).

2. (1) Consequently, these organisms are considered the primary producers in the food chain.

   • The word 'Consequently' creates a direct logical link to the previous sentence. Because autotrophs produce their own food, they are naturally classified as the 'primary producers.'

3. (3) They form the foundation of most ecosystems, providing the energy that is consumed by herbivores and, in turn, by carnivores.

   • This sentence explains the role of primary producers within the ecosystem. It follows sentence 1 by describing how being a 'primary producer' translates into supporting the rest of the food chain.

4. (4) Plants, algae, and certain bacteria are the most common examples of this type of organism.

   • This serves as the concluding sentence by providing concrete examples of the organisms that fulfill the complex ecological role described in the preceding sentences.

Final Logical Passage: Autotrophs are organisms that can produce their own food from inorganic substances using light or chemical energy. Consequently, these organisms are considered the primary producers in the food chain. They form the foundation of most ecosystems, providing the energy that is consumed by herbivores and, in turn, by carnivores. Plants, algae, and certain bacteria are the most common examples of this type of organism.

Hence, the chosen option is correct.