11. With reference to Agni-IV Missile, which of the following statements is/are correct?
1. It is a surface-to-surface missile.
2. It is fuelled by liquid propellant only
3. It can deliver one-tonne nuclear warheads about 7500 km away

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12. Consider the following techniques/phenomena: 
1. Budding and grafting in fruit plants
2. Cytoplasmic male sterility
3. Gene silencing

Which of the above is\are used to create transgenic crops?

13. There is some concern regarding the nanoparticles of some chemical elements that are used by the industry in the manufacture of various products. Why? 
1. They can accumulate in the environment, and contaminate water and soil.
2. They can enter the food chains.
3. They can trigger the production of free radicals.

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14. In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person?
1. Iris scanning
2. Retinal scanning
3. Voice recognition
 

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