World Geography
The length of the tropical years (the time interval between successive occurrences of the spring equinox) is decreasing very slowly as a result of
small, progressive change in earth's orbit around the sun
both (a) and (b)
small, progressive changes in the earth's rotational speed
Sir Fred Hoyle coined the term ‘big bang’ . It is important to note that the Big Bang theory was proposed by Georges Lemaitre but the term was coined by Fred Hoyle.
EXAMIANS