General Knowledge

English is recognized as an official language in approximately 57 sovereign states worldwide. This is supported by multiple authoritative sources, including WorldAtlas, which states that English is the official language of 57 sovereign countries. The number can vary slightly depending on definitions and political changes, but 57 is the widely accepted figure.

The land between the Ravi and Chenab rivers is known as Rachna Doab. 'Doab' refers to the land between two rivers, and each Doab has a specific name based on the rivers it lies between.

The oldest film industry in the world is Hollywood. While Nestor Studios, established in 1911, is recognized as the oldest film studio in the United States, the film industry itself began earlier in France with the Lumière brothers' first commercial movie screening in 1895. Hollywood developed as the dominant film industry later, becoming the oldest continuously operating major film industry. Bollywood and Lollywood are more recent developments. Therefore, the correct answer to the question about the oldest film industry is Hollywood.

CT Scan stands for Computed Tomography Scan, which is a medical imaging technique that uses computer-processed combinations of many X-ray measurements taken from different angles to produce cross-sectional images.

Ukara is an island located in Lake Victoria, which is the largest lake in Africa. The other lakes listed are in different continents and do not contain an island named Ukara.

The name 'eSwatini' means 'Land of the Swazis,' referring to the country and its people. This is the official name of the nation formerly known as Swaziland.

The United Nations Population Fund (UNFPA) is the UN body specifically focused on population issues, including reproductive health and population problems. The other options focus on development (UNDP), children (UNICEF), and education/science/culture (UNESCO).

Kabul, Afghanistan, is widely considered one of the most dangerous cities in the world due to ongoing conflict and security issues, unlike the other options which are relatively safer. This makes option C the correct answer.

World Senior Citizen Day is officially celebrated on August 21 each year, but the United Nations recognizes October 1 as the International Day of Older Persons. However, many countries celebrate World Senior Citizen Day on August 21. Given the options, August 21 is the correct date.

The tallest trees in the world are the coast redwoods (Sequoia sempervirens), which can grow over 350 feet tall, far exceeding the height of palms listed in the other options.