(A) the sun is revolving around the earth
(B) the earth is revolving around the sun
(C) the sun is revolving around its axis
(D) all of these
(A) the sun is revolving around the earth
(B) the earth is revolving around the sun
(C) the sun is revolving around its axis
(D) all of these
(A) solstice
(B) Malaka
(C) alps
(D) none of these
(A) day and night are equal
(B) big days, little nights
(C) little days, big nights
(D) none of these
(A) Iraq
(B) Bangladesh
(C) India
(D) Australia
(A) remove dust
(B) kill germs
(C) increase density
(D) none of these
(A) ionize
(B) spread
(C) divert
(D) none of these
(A) increase
(B) decrease
(C) remain constant
(D) none of these
(A) Carbon
(B) Silicon
(C) Sulphur
(D) Phosphorous
(A) is denser than common water
(B) is an oxide of deuterium
(C) has a heavy and bad test
(D) none of these
(A) mineral fuels
(B) inorganic fuels
(C) solid fuels
(D) all of these