Question

(a) Why do plants look greener after rain?
(b) Why are LPG and biogas called 'cleaner fuels'?​

Answer 1

Answer:

After it rains, there is more water available in the soil for plants. When plants take in that water, they are also taking in nitrogen from the organic matter that's in the soil. ... Ultimately, nitrogen causes growth and helps make things green.

Explanation:

CNG and LPG emit significantly less pollutants such as carbon dioxide, nitrogen oxides, sulphur oxides and particulate matter as compared to petrol and diesel. Hence it is referred to as clean fuel.

Answer 2

Answer:

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