The pollution due to oxides of sulphur gets enhanced due to the presence of:
$(a)$ particulate matter
$(b)$ ozone
$(c)$ hydrocarbons
$(d)$ hydrogen peroxide
Choose the most appropriate answer from the options given below:
$(a), (b), (d)$ only
$(b), (c), (d)$ only
$( a ),( c ),( d )$ only
$(a), (d)$ only
Summarize the quantities and differentiated quantities of different metals and ions at the international level of drinking water.
Write the uses of freon.
What are the major causes of water pollution? Explain.
What is Bio-chemical oxygen demand ?
How does biogas produce ?