1. In the latest experiment, CERN scientists have achieved a breakthrough by demonstrating the laser cooling of Positronium. In this context, consider the following statements:

1. A positronium is the antiparticle of the electron, with an identical mass but a positive electric charge instead of a negative one.
2. Positronium can exist in two forms: para-positronium (with antiparallel spins) and ortho-positronium (with parallel spins), with para-positronium being more stable.

Which of the statements given above is/are correct?

• 1 only
• 2 only
• Both 1 and 2
• Neither 1 nor 2

2. With reference to the Atal Vayo Abhyuday Yojana (AVYAY), Consider the following statements:

1. It is a Central Sector Scheme to improve the quality of life of the Senior Citizens.
2. Under this project, the senior citizens will get a monthly stipend‍ of Rs. 3500 for their expenses.
3. The project is implemented by the Department of Social Justice and Empowerment.

Which of the statements given above is/are correct?

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

3. Which one of the following best describes the term 'Cratons'?

• Cratons are a layered sedimentary structure formed by the growth of cyanobacteria (blue-green algae) in shallow aquatic environments.
• Craton is a metamorphic rock composed primarily of calcium carbonate (calcite) derived from the accumulation of shell, coral, algal, and other organic remains.
• Cratons are the oldest and most stable parts of a continent's lithosphere, typically composed of ancient rocks that have remained relatively unchanged over long periods of geological time.
• They are igneous rocks composed primarily of mafic minerals such as pyroxene and olivine, with a fine-grained texture.

4. Consider the following statements regarding the ‘Guinea Worm Disease’:

1. It is an infection caused by a parasite called Dracunculus medinensis (guinea worm).
2. This disease is presently eradicated in most parts of the world but is still seen in remote parts of Africa and some remote rural areas in the world where there is no access to clean drinking water.
3. Currently, there is no vaccine or drug developed to prevent or treat this disease.

How many of the above statements is/are correct?

• Only one
• Only two
• All three
• None of the above

5. On which one of the following rivers is the Kiru Hydroelectric Power Project located?

• Jhelum River
• Nubra River
• Chenab River
• Zanskar River