Kazakhstan is the largest country by land area among Muslim-majority states, so it is the biggest Muslim country by area.

As stated, Sri Lanka experienced massive protests driven by an economic crisis and shortages of fuel.

Wind energy comes from the motion of air, so it is kinetic energy derived from moving air masses.

Oxygen makes up roughly half of the Earth's crust by mass and is a major component of both water and the atmosphere.

Fleet Street is historically known as London’s center of newspapers and journalism, so ‘Newspaper centre’ fits.

'Still' indicates persistence despite competition and 'media' refers to communication channels, so 'still : media' completes the sentence.

Government strategic infrastructure includes communication, energy, and water systems, so radio stations, power plants, and water canals are all covered.

Zero Covid was China’s strict containment approach using lockdowns, mass testing, and travel restrictions to try to eliminate virus transmission.

Skin is the largest organ of the human body by surface area and overall mass.

A tritium nucleus consists of one proton and two neutrons, giving it a mass number of three.