4211: Which one of the following colloidal systems is represented by fog?
(a) Liquid in gas
(b) Gas in liquid
(c) Solid in gas
(d) Liquid in liquid
4212: An artificial satellite orbiting around the Earth does not fall down. This is so because the attraction of Earth
(a) Does not exist at such distance.
(b) Is neutralized by the attraction of the moon.
(c) Provides the necessary speed for its steady motion.
(d) Provides the necessary acceleration for its motion.
4213: Consider the following regions:
1. Eastern Himalayas
2. Eastern Mediterranean region
3. North-western Australia
Which of the above is/are Biodiversity Hotspot(s)?
(a) 1 only
(b) 1 and 2 only
(c) 2 & 3 only
(d) 1, 2, 3
4214: Cover of a solar cooker is made of glass. Why ?
(a) It absorbs sun rays
(b) It reflects sun rays
(c) Sun heat is transmitted through glass without much absorption
(d) None of these
4215: Who among the following laid the foundation of Rashtrakuta Empire?
(a) Amoghavarsha I
(b) Dantidurga
(c) Dhruva
(d) Krishna I