Question

4.
निम्नलिखित बारें में संक्षिप्त टिप्पणी लिखिए:-
(क) बाँध
(ख) कचरे की गाड़ी
(ग) वायु प्रदूषण
(घ) बीजों का अंकुरण
(ड) ओ.आर.एस​

Answer 1

Answer:

Dam - a barrier constructed to hold back water and raise its level, forming a reservoir used to generate electricity or as a water supply.

Garbage Truck - a vehicle used for collecting household refuse.

Air Pollution - Air pollution is the contamination of air due to the presence of substances in the atmosphere that are harmful to the health of humans and other living beings, or cause damage to the climate or to materials.

Seed Germination - Seed germination may be defined as the fundamental process by which different plant species grow from a single seed into a plant.

ORS - It is used in ORT. Oral rehydration therapy is a type of fluid replacement used to prevent and treat dehydration, especially due to diarrhea. It involves drinking water with modest amounts of sugar and salts, specifically sodium and potassium.

Sources-

https://en.wikipedia.org/wiki/Oral_rehydration_therapy

https://byjus.com/biology/seed-germination/

https://en.wikipedia.org/wiki/Air_pollution

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