FIA Sub Inspector Paper 15-12-2021

The boundary between the Earth's mantle and core, known as the core-mantle boundary or the Gutenberg discontinuity, lies at approximately 2900 to 3000 kilometers depth. This makes option C (3000 kilometers) the correct answer.

Hajj is one of the five pillars of Islam and requires both physical travel to Mecca and financial expenditure, making it a fundamental pillar involving physical and financial sacrifices. Salat is prayer, and Zakat is almsgiving, which involves financial sacrifice but not physical travel.

RAM stands for Random Access Memory, which is a type of computer memory that can be accessed randomly at any time, regardless of physical location in memory.

The welcome screen in most operating systems displays the names of all user accounts on the computer, allowing users to select their profile to log in. This matches option B, making it the correct answer.

The adult human skeleton typically consists of 206 bones. This is a well-established fact in human anatomy.

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

Muhammad Ali Johar died in 1931, during the period of the Second Round Table Conference (1931). The other leaders listed were alive at that time or died at different periods.

The cytoplasm is the living material within the cell where organelles are suspended and carry out their functions. Chlorophyll is a pigment, the cell wall is a rigid outer layer, and 'None of these' is incorrect.

The Quit India Movement was launched by the Indian National Congress in 1942 as a mass protest demanding an end to British rule in India. The All India Muslim League did not start this movement.

According to the Constitution of Pakistan and verified authoritative sources including Wikipedia and recent news reports, the President of Pakistan is the Supreme Commander of the Pakistan Armed Forces. The President holds the highest authority over the military, while the Prime Minister is the chief executive of the government. The current President of Pakistan is Asif Ali Zardari. Therefore, the correct answer is 'B' (President).