Coal Coal is a readily combustible, black or brownish-black sedimentary rock, predominantly made of carbon. Coal is classified as a nonrenewable energy source because it takes millions of years to form. Coal is a fossil fuel and comprises a mixture …
Context The World Health Assembly passed a resolution highlighting the increasing impact of climate change on health and called for radical measures to counter health risks. About WHO Founded in 1948, the World Health Organization (WHO) is the United Nations …
About Operation Bluestar was an Indian Army operation carried out in June 1984 in the Golden Temple in Amritsar, Punjab, to flush out militants who were led by Jarnail Singh Bhindranwale, a key figure in the growing separatist Khalistan movement …
What is a Heat Stroke? Heat stroke is the most serious heat-related illness. It occurs when the body can no longer control its temperature: the body’s temperature rises rapidly, the sweating mechanism fails, and the body is unable to cool …
What are Critical Minerals? There is no global definition of critical minerals, but essentially, they are mineral deposits with high economic vulnerability and high global supply chain risk. Globally, there is a gap between projected supply and projected demand for …
Urban heat island effect (UHI) The Urban Heat Island effect refers to localized areas within cities or metropolitan areas that experience significantly higher temperatures when compared to surrounding regions. Urban heat island is basically induced due to trapped heat between …
About Purana Quila Purana Qila, translates to old fort and is one of the oldest forts in Delhi. Purana Qila lies in the city of Dinpanah, in Delhi and was constructed by Mughal emperor Humayun. The founder of the Sur …