Everyday Science MCQs

Most transpiration occurs through leaf stomata.
It helps pull water upward through xylem.

Coal formed from buried plant matter over geological time.
Heat and pressure changed the material into carbon-rich fuel.

The cell membrane is selectively permeable.
It regulates exchange between the cell and its environment.

The anther is part of the stamen.
It contains pollen-producing structures.

Parallel branches have the same potential difference.
Switching off one appliance does not stop current in the others.

Iron's symbol Fe comes from the Latin word ferrum.
It is a common structural metal.

Acid and base properties cancel during neutralization.
The products commonly include a salt and water.

Brass contains mainly copper and zinc.
It is used in fittings, instruments, and decorative items.

An electric motor uses magnetic forces on current-carrying conductors.
It converts electrical energy into motion.

Sodium's symbol Na comes from the Latin natrium.
It is a highly reactive alkali metal.

Antacids contain mild bases.
They reduce acidity and relieve symptoms such as heartburn.

A generator uses electromagnetic induction.
Mechanical motion produces electrical energy.