At high doses, ______ kills cancer cells or slows their growth by damaging their DNA. Cancer cells whose DNA is damaged beyond repair stop dividing or die. When the damaged cells die, they are broken down and removed by the body.
Which of the following statement is correct regarding large dams?
I. They have social problems because they displace large number of peasants and tribals without adequate compensation or rehabilitation.
II. They have Environmental problems because they contribute enormously to deforestation and the loss of biological diversity.