IAS 1998 — Technology

Consider the following statements regarding asteroids: 1. Asteroids are rocky debris of varying size orbiting the sun 2. Most of the asteroids are small but some have diameter as large as 1000 km 3. The orbit of asteroids lies between the orbits of Jupiter and Saturn of these statements:

Match List-I with List-II and select the answer using the codes given below: | List-I (Disease) | | List-II (Organism) A. | Malaria | 1. | Fungi B. | Poliomyelitis | 2. | Bacteria C. | Tuberculosis | 3. | Virus D. | Ringworm | 4. | Protozoan

The satellites of which one of the following countries have helped in the preparation of a detailed and complete map of Antarctica?

One astronomical unit is the average distance between:

Which one of the following elements is essential for the construction of nuclear reactors?