It is estimated that 80% of all is untreated and flows directly into india's rivers, making it a major source of water pollution

Raw sewage

Explanation:

About the 80% of the untreated water that falls in the Indian rivers has its source in the industrial districts and they are heavy use and chemical abusers of the degraded and degenerate waters and they dump these toxic wastes in the sewage system that flows directly to the rover ecosystem nearby and created water-born diseases.

so they can differentiate themselves from others as they saw themselves as the superior race. the star was basically a symbol that meant you are a less of a person than i am because of my race. the star was also degrading for those who had to wear it because they were aware of this and the nazis used the notion to make them feel less like a person.

the answer is actually b.   as habitats are destroyed, animals and plants may become extinct.   , according to edge nuity