Answer: He was a German astronomer, mathematician, and astrologer.
Purdah or pardah (from Persian: پرده, meaning "curtain") is a religious and social practice of female seclusion prevalent among some Muslim and Hindu communities in South Asia.[1] It takes two forms: physical segregation of the sexes and the requirement that women cover their bodies so as to cover their skin and conceal their form. A woman who practices purdah can be referred to as pardanashin or purdahnishan.
The answer would be C. increased nitrogen levels in ponds. Increase in nitrogen levels has to do with overgrowth of algae in ponds, which limits oxygen in ponds and has no relation to deforestation.
