Foreign source income refers to income earned by a Pakistani citizen while working outside Pakistan, i.e., income arising from services rendered abroad.

Immunization works by giving a vaccine that stimulates the immune system to provide protection against the disease.

Total work = 6×16 = 96 person-days; with 8 people days = 96÷8 = 12 days.

Earnings are proportional to workers, so 600 is 1.5 times 400; 1.5 × 14 = 21 persons.

According to the report, the U.S. sanctions targeted members of a network linked to Iran.

‘Of’ is the standard collocation with appreciative, so ‘appreciative of the efforts’ correctly expresses gratitude for the staff's work.

A & B both — Both Maria Ressa and Dmitry Muratov were awarded the 2021 Nobel Peace Prize for their work defending freedom of expression.

A worksheet is a grid of rows and columns and each intersection is a cell, which is where you enter text and numbers.

Per the question, Pakistan’s security measures are guided by the National Security Policy (NSP) because the NSP sets the country’s overall security priorities and frameworks.

Pakistan Civil Aviation Act, 2023 is the named statute that establishes the legal framework and regulations for civil aviation in Pakistan.