Question

advantages of using solar cells and biogas ​

Answer 1

》Advantages of using solar cells:

• It is inexhaustible.

• It is non-polluting.

》Advantages of using biogas:

• It has a low cost.

• It is easy to operate.

• It makes use of bio-waste.

Answer 2

The advantages of using solar cells and biogas are as follows.

(i) Both are sources of renewable energy.

(ii) Both of them are low cost energy options and are economical to use.

(iii) They are environment-friendly options and are cleaner energy sources.

(iv) With biogas, waste can be treated in a correct manner

(v) Infinite energy can be tapped through solar cells

(vi) Solar PV cells have a long life of at about 20 years and therefore long term energy requirements can be met.