Detergents and fertilizers containing phosphate compounds are responsible for

Which of the following processes is $NOT$ used to preserve food?

Aldehydes are produced in the atmosphere by:

Which of the given statements are correct,when carboxyhaemoglobin reaches $3-4 \%$ in blood?
$(I)$ Leads to headache
$(II)$ Results in cardiovascular problems
$(III)$ Increases the body temperature
$(IV)$ Leads to diarrhoea

Which one of the following substances used in dry cleaning is a better strategy to control environmental pollution?

The chemical entities present in the thermosphere of the atmosphere are