He is writing a thesis on geomorphology.

Geomorphology is the science that studies the surface shape of the earth.

Geopolitics is the key to understanding important aspects of international relations.

He has a wealth of scientific knowledge and is always excited about new discoveries.

Earth science is an important field of study for unraveling the mysteries of nature.

The petals scattered in the wind.

Grandpa was scratching his back using a backscratcher.

I installed a new doghouse in my garden.

She is the mother of quintuplets.

Will the day ever come when I am freed from this eternal torment?