ratio study मीनिंग इन हिंदी

Dr . Martha K . McClintock, a biopsychologist at the University of Chicago, said the new sex ratio studies might hit close to home in quite another way.
Also, based on deuterium to hydrogen ratio studies, much of the water at Gale Crater on Mars was found to have been lost during ancient times, before the lakebed in the crater was formed; afterwards, large amounts of water continued to be lost.