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Consider the following payloads : 1. Chandra's Surface Thermophysical Experiment 2. Alpha Particle X-ray Spectrometer 3. High Energy L1 Orbiting X-ray Spectrometer 4. LASER-Induced Breakdown Spectroscope

Consider the following statements about quantum dots : 1. A quantum dot is a small assembly of atoms around a few nanometers wide. 2. When light is shined on a quantum dot, it absorbs and then re-emits it at a different frequency. 3. Smaller dots emit red light, whereas larger dots emit blue light.

Consider the following statements : 1. Thorium cannot be directly used as a fuel in nuclear reactors. 2. Thorium cannot sustain a chain reaction on its own. 3. Thorium mining is more expensive than uranium mining due to its less abundance in the earth's crust. 4. Thorium-fueled reactors could be much more environmentally friendly than their uranium counterparts.

With reference to the application of Nanotechnology to agriculture in India, consider the following statements : 1. A nano-agriproducts is a preparation containing nanomaterials intended for external and internal application on crops for agricultural farming. 2. A nano-agriproduct is a preparation containing nanomaterials intended for consumption or applications in food/feed and their supplements as well as nutraceutical delivery.

With reference to the CRISPR-Cas 9 system, consider the following statements : 1. CRISPR is likened to a pair of molecular scissors that allows genes to be altered and errors fixed. 2. This technology harnesses the natural defense mechanisms of viruses against bacteria. 3. No country has so far approved the use of this technology for the cure of blood disorders.

Consider the following statements with respect to Carbon Nanoflorets : 1. Nanoflorets absorb only infrared and visible light. 2. They can convert light energy into thermal energy, a process called solar thermal conversion. 3. Nanoflorets can be coated on paper, metal, and terracotta clay.

Consider the following statements with reference to NASA-ISRO Synthetic Aperture Radar (NISAR) : 1. It marks the first time the two space agencies have cooperated on hardware development for an earth-observing mission. 2. It will be the first radar imaging satellite to use dual frequencies in space.