During these days the sun shines directly over the equator. 21 March is called vernal equinox and 23 September is called autumnal equinox. Solstice The time of the year when the difference between the length of days and nights is the largestanbsp;...
|Title||:||The Pearson Concise General Knowledge Manual 2010 (New Edition)|
|Publisher||:||Pearson Education India -|