FPSC MCQs

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.

Biodegradable materials can be decomposed by bacteria and fungi.
Food scraps and paper are common examples.

Cholera is caused by Vibrio cholerae.
Safe water, sanitation, and rapid rehydration are essential.

Composting uses microorganisms to break down organic matter.
The product can improve soil structure and fertility.

Dengue is transmitted mainly by Aedes aegypti and related mosquitoes.
These mosquitoes often bite during daytime.

Leaks waste substantial water over time.
Repairing them is a simple and effective conservation measure.

Cool running water removes heat and limits tissue damage.
Direct ice can worsen injury by causing cold damage.