The most common pesticide used in India is

Which one of the following is the correct expanded form of the acronym?

The $Chipko$ movement was started for the protection of .........

Maximum greenhouse gases are released by

$LPG$ stands for Liquefied Petroleum Gas,which is primarily composed of propane and butane. What is the nature of $LPG$?

Which of the following statement$(s)$ is/are not correct regarding biomagnification?
$I.$ Heavy metals and persistent pesticides pass into the food chain and increase in amount per unit weight of organisms with the rise in trophic level due to their accumulation in fat.
$II.$ Accumulation of zinc can cause thinning of eggshells in birds.
$III.$ $DDT$ accumulation is a major cause of the killing of fish-eating birds.
$IV.$ Biomagnification occurs only in marine food chains.