Science Quiz from 151 to 155

Page: 1 | 2 .. 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35

151. The Earth’s internal heat mainly comes from
(A) Liquid hydrogen
(B) Chemical reactions
(C) Radioactive decay
(D) Molecular kinetic energy

152. There are different seasons on the Earth because of
(A) Rotation of the Earth
(B) Revolution of the Earth
(C) The Earth’s axis is tilted
(D) The Earth’s distance from the Sun

153. On average, Air contains ________ % of water vapours.
(A) 1
(B) 3
(C) 5
(D) 7

154. Earth’s troposphere extends from the Earth’s surface to an average height of about ________ km.
(A) 10
(B) 12
(C) 15
(D) 17

155. The science of lightning is called
(A) Aerology
(B) Meteorology
(C) Electeorology
(D) Fulminology

ANSWERS: SCIENCE QUIZ
151. (C) Radioactive decay
152. (C) The Earth’s axis is tilted
153. (A) 1
154. (B) 12
155. (D) Fulminology