The symbol Δ represents the Greek letter delta.

The denominator of the fraction is 12.

The farmer sprayed pesticide on the crops to protect them from insects.

He is considered one of the elite in his field.

The approval is conditional upon meeting all the requirements.

Rationality is the key to making logical decisions.

The thermal energy from the sun is used to heat the water.

The mutation of the virus caused a pandemic.

The coefficient of friction determines how much two surfaces will slide against each other.

After undergoing rehabilitation, the injured person was able to reintegrate into society.