FPSC Everyday Science MCQs

Coal, oil, and gas release stored carbon when burned.
The resulting carbon dioxide contributes to climate change.

Immunity uses physical barriers, cells, and molecules to defend the body.
It includes innate and adaptive responses.

Methane absorbs infrared radiation efficiently.
It is produced by anaerobic decomposition and livestock digestion.

Vaccines expose the immune system to safe antigenic material.
This creates memory for faster future protection.

These pollutants form sulfuric and nitric acids in air.
Acid deposition can harm lakes, soils, buildings, and forests.

Antibiotics act on features such as bacterial walls or ribosomes.
Viruses use host-cell machinery and lack those targets.

Smog reduces visibility and can irritate the respiratory system.
Some smog forms through sunlight-driven chemical reactions.

Resistance evolves through mutations and selection.
Misuse and overuse of antibiotics accelerate its spread.

Incomplete combustion produces carbon monoxide.
The colorless gas can accumulate dangerously in enclosed spaces.

Plasmodium parasites cause malaria.
They are transmitted mainly by infected female Anopheles mosquitoes.

Catalytic converters promote reactions that reduce carbon monoxide, hydrocarbons, and nitrogen oxides.
They require suitable operating temperature.

Tuberculosis is a bacterial disease, often affecting the lungs.
It spreads through airborne droplets.