Complete the missing links:
A heavy metal pollutant released in automobile exhaust is ________

Complete the missing links: The DDT is a ______ pollutant.

Complete the missing links: ………………. Is a hetrocrine gland.

Complete the missing links: DDT is a serious pollutant as it is a ________ pollutant and undergoes--------------.

Complete the missing links: The non-motile cilia are called…………………. .

Complete the missing links: _________ are major aerosol pollutant present in jet aircraft emission.

Complete the missing links: Cadmium pollution caused _______ disease in Japan.

Complete the missing links: COD stands for _________

Complete the missing links: Ecology is the study of………………

Complete the missing links: ……………… act as resoriators in frog.

Complete the missing links: Main cause of population explosion is………….