In the cities of our country, which among the following atmospheric gases are normally considered in calculating the value of Air Quality Index?

1. Carbon dioxide

2. Carbon monoxide

3. Nitrogen dioxide

4. Sulfur dioxide

5. Methane

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With reference to 'Astrosat', the astronomical observatory launched by India, which of the following statements is/are correct?

1. Other than USA and Russia, India is the only country to have launched a similar observatory into space.

2. Astrosat is a 2000 kg satellite placed in an orbit at 1650 km above the surface of the Earth.

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With reference to the economic history of medieval India, the term 'Araghatta refers to

With reference to the cultural history of India, consider the following pairs:

1. Parivrajaka - Renunciant and Wanderer

2. Shramana - Priest with a high status

3. Upasaka - Lay follower of Buddhism

Which of the pairs given above are correctly matched?

Recently for the first time in our country, which of the following States has declared a particular butterfly as 'State Butterfly'?