World Geography
The major events of Pre-Cambrian era include

formation of crust, birth of oldest known rock, origin of life
formation of present day atmosphere
All of these
formation of crust, continents and oceans

ANSWER DOWNLOAD EXAMIANS APP

World Geography
Which among the following statements is/are correct about Density of ocean water?Salinity is inversely related to seawater density.Seawater density decreases with increasing salinity and vice versa.Select the correct code from the options given below:

Neither 1 & 2
Both 1 & 2
Only 1
Only 2

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP