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 changes in the earth's rotational speed
small, progressive change in earth's orbit around the sun
None of these
both (a) and (b)

ANSWER DOWNLOAD EXAMIANS APP

World Geography
Which among the following statements is/are correct about the stratosphere?The Stratosphere is the layer of the Earth’s atmosphere which lies beyond the mesosphere.It extends up to an altitude of 50 kilometres from the earth’s surface.This layer is ideal for flying aeroplaneSelect the correct code from the options given below:

Only 1 & 2
Only 1
Only 2 & 3
1, 2 & 3

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP
MORE MCQ ON World Geography