Which plan was implemented in April, 1993 under the banner- "Yamuna ko Swachha bnana hai, hum sab ko haath batana hai" aims at cleaning and conserving water of the river Yamuna by removing pollutants from it.

Environmental Protection Act was enacted in the year

Deficiency of Vitamin A causes

The formula for Ethane is

The building units of oligosaccharides and polysaccharides are

The spectral bands used in Greenness Vegetation Index are (A) Red (B) Blue (C) Green (D) NIR (E) MIR
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The consumption of water containing high levels of nitrate–N can lead to

The WHO standard of drinking water for nitrate is

Emissivity of a black body is

The common table sugar is