Question

why do grass look green ,papaya yellow and adible part of watermelon red

Answer 1

the grass looks great because it has chlorophyll present in it which gives the green colour needed for plant

Answer 2

grass looks green bcs of the chlorophyll present in it.

papaya looks yellow bcs of xanthophyll.

watermelon's edible part is red bcs of lycopene, the same substance which gives tomato its red colour. they are not always red inside sometimes yellow also.