Question

it looks quite green and healthy. what was the cause of leaves colour and freshness​

Answer 1

Leaves are colored by molecules called pigments. The pigment that causes leaves to be green is chlorophyll. Instead, those plants break down chlorophyll into smaller molecules. As chlorophyll goes away, other pigments start to show their colors.

Answer 2

Leaves looks green and fresh and quite healthy because they contain chlorophyll which gives colours to the leaves.chlorophyll containing tissues are known as Chlorenchyma ( through which all ordinary assimilation of plants food takes place).