i) How is the sex of a foetus determined? Why is it prohibited by law?
ii) Write any five factors which should be considered while choosing a fuel.
iii) What is Electrolysis? Explain the process of electrolysis of water using chemical
equations.
iv) a) State the laws of reflection.
b) Mention any three vision-related problems and their possible causes.
v) a) Describe Eutrophication.
b) What is acid rain? Mention any two effects of it.
vi) What are secondary sexual characters? Mention the male and female secondary
sexual characters in human being.
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Prenatal sex determination was banned in India in 1994. This was done aiming to prevent sex-selective abortion, which, according to the Indian Ministry of Health and Family Welfare, "has its roots in India’s long history of strong patriarchal influence in all spheres of life". Prenatal sex determination has caused the Child sex ratio to go down at alarming rates, in India, which is also another factor that led to its banning.
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