General Knowledge

Contrary to the original claim, China shares land borders with 16 countries, which is the highest number of any country in the world. Russia shares land borders with 14 countries. India shares borders with 7 countries. Therefore, the correct answer is China, not Russia.

Jakarta is widely recognized as the world's fastest-sinking city due to excessive groundwater extraction and rapid urban development causing land subsidence at alarming rates.

The term 'Supervene' does not correspond to any known seaport. The search results and authoritative port listings do not identify any seaport named 'Supervene'. The original question likely contains a misspelling or confusion. Among the given options, Spain is a country with notable seaports such as Valencia and Algeciras. Since 'Supervene' is not a recognized seaport in Brazil, Denmark, Russia, or Spain, and the question is likely erroneous, the best correction is to associate 'Supervene' with Spain as the closest plausible answer, or to correct the question to refer to a known Spanish seaport. Therefore, the correct answer is D (Spain).

Leonardo da Vinci Airport, also known as Rome Fiumicino Airport, is located in Italy. It is the main international airport serving Rome and is named after the famous Italian polymath Leonardo da Vinci.

Jean-Jacques Rousseau was a prominent political philosopher known for his influential works on social contract theory and political philosophy, making option A correct.

UN Chinese Language Day is observed annually on April 20th, not April 17th. This day celebrates the Chinese language and culture within the United Nations.

China is currently Pakistan's largest trading partner in terms of both exports and imports, surpassing the USA. This is due to strong economic ties and projects like the China-Pakistan Economic Corridor (CPEC).

The Taj Mahal was designed by Ustad Ahmad Lahouri, who is widely recognized as the chief architect of this iconic monument built during the Mughal era in India.

World No Tobacco Day is observed annually on 31 May to raise awareness about the harmful effects of tobacco use and to encourage people to quit smoking.

The United States and Russia together hold about 50% of the world's coal reserves, making option A correct. China also has significant coal reserves but not combined with Russia to reach 50%.