Identify the energy 'X', 'Y','W' and 'Z' from the below image.
X:- Solar energy
Y:- Chemical energy
W:- Heat energy
Z:- Light energy
The energy obtained from the sun is called solar energy which is converted to chemical energy by plants during photosynthesis (the process by which plants make their own food).
This chemical energy is the stored energy and remains in the plants and fossil fuels like coal, petroleum (formed by decomposition of plants and animals).
On burning fossil fuels they generate a large amount of heat and light energy along with carbon dioxide and water.