Solvents and Solutions (Their Work Is Essential)

Their work is crucial

It is fundamental

As important as an exam

They are widely used in schools and homes

Their work is necessary

It is primary

As important as my blood

They are widely used in industries

Their work is vital

Described as the principal

As important as the sunlight

They are widely used in agriculture

Their work is key

Their work is elementary

As important as the moonlight at night

They are widely used in medicine

Their work is irreplaceable

It is indispensable

As important as the air that I breathe