Question

solar energy is one of the cheapest forms of energy.The comparative form of the sentence is......

Answer 1

Solar energy is cheaper than all forms of energy

Answer 2

A comparative sentence is one which compares one object is compared with another or more than one object. Usually, 2 nouns are used in such sentences. Also, to ensure the comparative form, a superlative form of the adjective is used which includes using the suffices like 'er' or 'est'.

So, the comparative form of the given sentence can be written as - 

1. Of all the forms of energy, solar energy is the cheapest one.

2. Solar energy is the cheapest form of energy than the other forms.

3. Solar energy is cheaper than all other forms of energy.