Question

Assertion: Mists are non-viable particulates produced by particles of spray liquids and by condensation of vapours in air.
Reason: Herbicides and insecticides that miss their targets, travel through air and form mists.
(A) Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
(B) Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
(C) Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
(D) Both Assertion and Reason are incorrect.

Answer 1

Hint : We know that the non-viable particle is a particle that doesn't contain a living organism but acts as transportation of viable constituents. Viable particles are not free-floating; they need carriers to float from one area to another area.

Complete Step By Step Answer:
Pesticides are the substances or a mixture of two or more substances used by humans for killing pests like insects, rodents, mites etc. or to prevent the damage caused by pests. These pesticides are mostly used in crops to prevent pests which destroy crops. Examples of pesticides are: Aldrin, Methomyl, Aldicarb, fungicides, herbicides, and insecticides. Examples of specific synthetic chemical pesticides are glyphosate, Acephate, Metaldehyde, Boric Acid, Diazinon, Dursban, DDT, Malathion, etc. pesticides have drawbacks, such as potential toxicity to humans and other species. Herbicides are the pesticides which are most commonly used to kill unwanted plants like weeds in farms or crops. Examples of herbicides are Acetochlor, Atrazine, Amitrole, and Dinosep.
Herbicides are harmful for living beings. These are weed killers, e.g. sodium chlorate and sodium arsenite. These are toxic to mammals. Some herbicides also have drawbacks that cause birth defects. Nowadays triazines, better herbicides are used for the corn fields. Mists are the vapours in the air that undergo condensation. Their production is also possible by liquid sprays. For e.g.: Herbicides and pesticides are used in the form of sprays in agriculture but sometimes it misses its target and enters the atmosphere thereby forming mists. Mists are a non-viable particulate matter which is classified on the basis of size and their nature.
Therefore, the correct answer is option B.

Note :
Remember that the distinct types of monitoring methods are used for viable particle detecting, such as. Passive air sampling (settle plate method); Active air sampling (volumetric air sampling); Surface monitoring (swap sampling); Personal monitoring (contact method).