Everyday Science MCQs

Urine flows from kidneys through ureters to the bladder.
The bladder stores it until urination.

Crude petroleum contains many hydrocarbon compounds.
Refining separates it into useful fractions.

The plant cell wall is mainly made of cellulose.
It supports the cell and helps prevent bursting.

The stigma is typically sticky or adapted to catch pollen.
It is part of the female reproductive structure.

Bronze is primarily copper alloyed with tin.
It is harder than pure copper.

Crude oil is heated and separated in a fractionating column.
Components condense at different heights according to boiling point.

Chloroplasts contain chlorophyll and photosynthetic machinery.
They convert light energy into chemical energy.

Pollination occurs before fertilization in flowering plants.
It may be carried out by wind, insects, or other agents.

Steel contains iron with a controlled amount of carbon.
Other alloying elements can modify its properties.

Petrol is a volatile petroleum fraction used in spark-ignition engines.
It contains a blend of hydrocarbons.

Diffusion is driven by random particle motion.
Net movement continues down a concentration gradient.

Germination begins when suitable moisture, oxygen, and temperature are available.
The embryo resumes growth.