Human Environment

Which of the following statements is correct? I. Montreal Protocol was signed in 1987. II. Earth Summit 1992 was held at Rio-de-Janeiro. III. World Environment Day is 5 June. IV. World Environment Day coincides with commemoration of First United Nations Conference of Human Environment. V. At DO below 4 mg/L water at normal temperature is heavily polluted.

Which are different adverse effect of biotechnology on human health and environment?

The concept that aims to maximize efficiency and minimize hazardous effect on human health and environment was coined by Paul T.Anastas

Which one of the following statements is true regarding role of heredity and environment in human development?