Question

cones are key element for the pine tree. why do you think so and justify by giving more facts

Answer 1

yeah, because it may contain nuts

Answer 2

Cones are a key element for a pine tree indeed as for the reasons that there are male and female cones on the tree.The female cones howsoever are responsible for generating the seeds and the male ones are responsible for dropping pollen. The wind carries the pollen to the female seeds and through this method, the female cones have a fertilized seeds; making new cones.