Active faults are geological fractures that have recently moved and are likely to move again in the future.

There are several active volcanos in the Pacific Ring of Fire.

Active galaxies are fascinating objects in the universe.

The actaeonids were known for their exceptional hunting skills.

The children love singing action songs at the school assembly.

Actinic keratoses are precancerous growths on the skin.

Many action paintings were displayed at the art exhibition.

Activation energies play a crucial role in determining the rate of a chemical reaction.

Active dry yeasts are commonly used in baking.

Action heroes are admired for their bravery and strength.