FIA

Hazrat Umar R.A embraced Islam after reading Surah Taha, which deeply moved him and influenced his decision to accept Islam. This is a well-documented historical event in Islamic tradition.

Changa Manga is a large man-made forest located near Kasur, Punjab, which is not part of Lahore, Karachi, or Quetta. Therefore, none of the cities listed in options A, B, or C is correct, making 'None of these' the correct answer.

The road connecting Pakistan and China is known as the Karakoram Highway, which is a major trade route and one of the highest paved international roads in the world.

The Constitution of Pakistan in 1956 was framed under the Indian Independence Act of 1947, which provided the legal framework for the creation of Pakistan as an independent state and its subsequent constitutional developments.

According to Islamic jurisprudence, zakat on goats (which are treated the same as sheep) becomes obligatory when a person owns at least 40 goats. If the number of goats is less than 40, no zakat is due unless given voluntarily. At 40 goats, one goat is payable as zakat. This is supported by multiple authoritative Islamic sources and scholarly consensus. Therefore, the correct answer is option B: 40 goats.

Baghdad, the capital of Iraq, was founded by Abu Jafar al-Mansur in the 8th century as the capital of the Abbasid Caliphate. He is historically credited with establishing the city.

Meteorology is the scientific study of the atmosphere, primarily focused on weather processes and forecasting. Therefore, option B correctly describes meteorology as the study of the atmosphere for weather forecasting.

Twitter was launched in 2006, making option A the correct answer. The other years listed are incorrect for Twitter's launch date.

The Holy Prophet Muhammad (SAW) had two sons, Qasim and Abdullah, both of whom died in infancy. Therefore, the correct answer is 2.

A landlocked country is one that is completely surrounded by land and has no coastline or direct access to the ocean. Therefore, option B correctly defines a landlocked country.