The level of `CO` gas in air that causes immediate death is

Some statements regarding air pollution are given. Among them, the correct statements are (a) Above 80% of CO is released from automobiles. (b)in urban areas, at the peak time of the traffic the level of CO is 100 to 500ppm (c) If the percentage of CO-Hb in the blood is 32% it causes immediate death (d) TLV of CO in the atmosphere is 9ppm

The higher concentration of which gas in air can cause stiffness of flower buds ?

How Bt- toxin causes death of insect?

A monohydric alcohol is a poison and causes blindness and even death , that is

Air pollutants I.cause injury to all living organism II.reduce growth and yield of crops and causes premature death of plants III.affects the respiratory system of humans and animals Which of the statements given above are correct?

Withdrawal of which of the following hormones is the immediate cause of menstruation

A disease which causes maximum deaths in children is

A disease which causes maximum deaths in children is