Posted inUPSC Prelims
UPSC Prelims 2021 – Question 98
Q98. Consider the following statements:
It was during the reign of Iltutmish that Chengiz Khan reached the Indus in pursuit of the fugitive Khwarezm prince.
Posted inUPSC Prelims
UPSC Prelims 2021 – Question 97
Q97. Consider the following pairs:
(Historical place) (Well-known for)
Burzahom: Rock-cut shrines
Methane Emissions and Sink – UPSC Environment Notes
Methane (CH4) contributes to 15–35% of the overall increase in human-induced greenhouse gas emissions.
In the last decade, there has been a notable rise in the atmospheric methane growth rate (MGR), primarily attributed to elevated emissions from fossil fuels and microbial sources.
Posted inUPSC Prelims
UPSC Prelims 2021 – Question 96
Q96. With reference to Madanapalle of Andhra Pradesh, which one of the following statements is correct?
a) Pingali Venkayya designed the tricolour Indian
Denitrification – Nitrate to Nitrogen – UPSC Environment Notes
Denitrification is a microbiological process facilitated by bacteria, wherein nitrate (NO3−) undergoes reduction, ultimately yielding molecular nitrogen (N2) through a sequence of intermediate gaseous nitrogen oxide products.
Posted inUPSC Prelims
UPSC Prelims 2021 – Question 95
Q95. According to Portuguese writer Nuniz, the women in the Vijayanagara Empire were experts in which of the following areas?
Wrestling
Astrology
Ammonification – Urea, Uric Acid to NH3 to Nitrite – UPSC Environment Notes
Upon the death of these animals, the nitrogen compounds within their bodies undergo a breakdown process into ammonia, known as ammonification.
Nitrification – Ammonia to Nitrites and Nitrates – UPSC Environment Notes
Nitrification, a crucial step in the soil nitrogen cycle, is a natural process conducted by specialized autotrophic bacteria in the environment.
Posted inUPSC Prelims
UPSC Prelims 2021 – Question 94
Q94. From the decline of the Guptas until the rise of Harshavardhana in the early seventh century, which of the following kingdoms were holding power
Nitrogen Fixing – N2 to Ammonia (NH3) – UPSC Environment Notes
The initiation of the nitrogen cycle begins with the crucial biological process known as nitrogen fixation. During this process, specific bacterial species
