1. Consider the following statements regarding the High-Energy Proton Accelerator System:

1. It accelerates protons using electromagnetic fields to generate a high-energy beam.
2. The proton beam striking heavy metal targets produces neutrons through spallation.
3. The system is used as an external neutron source in Accelerator-Driven Systems.

Which of the statements given above is/are correct?

• 1 only
• 1 and 2 only
• 2 and 3 only
• 1, 2 and 3

2. Which of the following best explains the term sexual dimorphism in birds?

• Birds that migrate seasonally
• Birds with different feeding habits
• Male and female birds showing distinct physical characteristics
• Birds that can change colour during breeding season

3. Which organisation developed the Kavach system?

• ISRO
• DRDO
• Research Design and Standards Organisation
• Centre for Railway Information Systems

4. In the recent research involving engineered bacteria, the “Trojan Horse strategy” refers to:

• Destroying bacterial membranes using toxins
• Delivering artificial amino acids inside peptide chains
• Using viruses to transport proteins
• Injecting synthetic DNA into bacteria

5. The term “Sujal Gaon ID”, sometimes seen in the news, is associated with:

• Digital monitoring of village water supply systems
• Identification of drought-prone villages
• Mapping of groundwater aquifers
• Rural sanitation database