I think you mean "photosynthesize". Plants are not sentient beings, and therefore, can not assert a hypothesis.
This is as detailed as it gets, and explains it much better than I could hope to:
http://en.wikipedia.org/wiki/Photosynthesis#In_plants
the tree would be a pine tree because pine trees have needlelike leaves
Scientists hypothesize that plants evolved from ancient aquatic green algae that adapted to living on land. This transition is thought to have occurred around 450 million years ago, with plants developing structures like roots, leaves, and vascular tissues to help them thrive in terrestrial environments. Genetic and fossil evidence support the theory of plant evolution from algae.
the plant has to get chloraphill in the leaves can help a plant
Leaves are mainly responsible for photosynthesis in a plant.
A plant without leaves is called a "leafless plant."
yes they are a plant first leaves
it makes the plant leaves green
No, the plant has not lost all its leaves.
Magnesium deficiency create dead leaves and yellow leaves on a plant.
because the leaves create food for the plant.
A plant with finger-like leaves is called a palm plant.
The number of leaves on a mint plant can vary, but typically a healthy mint plant can have anywhere from 20 to 50 leaves.