FPSC Everyday Science MCQs

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.

Deforestation removes tree cover for farming, timber, or development.
It can reduce biodiversity and increase erosion.

Direct pressure helps compress damaged vessels and promote clotting.
Emergency help is needed if bleeding is severe.

Nitrogen makes up about 78% of the atmosphere.
Oxygen is the second most abundant gas.

Oxygen accounts for about 21% of dry air.
It supports respiration and combustion.

The troposphere contains most atmospheric water vapor.
Clouds, rain, and storms form mainly in this layer.

Stratospheric ozone absorbs much ultraviolet radiation.
This helps protect living organisms from DNA damage.