His thoughts always guide his actions.

The ape is my favorite animal.

We had a picnic in the garden of the manor.

He was accused of a crime he did not commit.

Please add a little vinegar to this salad.

We cannot live without oxygen.

An isotope refers to elements with the same atomic number but different numbers of neutrons.

Rare earth elements are essential materials for the manufacture of electronic devices.

Hydrogen is the most abundant element in the universe.

Transition elements play an important role in chemical reactions.