The original source of energy for the pyramid is the sun or

The Sun is the original source of energy in all food chains on the surface of the Earth and in the upper parts of the Oceans. Primary Producer. The green plants are the Primary Producers for the food chain. The energy from the Sun is converted by the plants into food.

I hope this is correct

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

and after water is usually warmed by the sun the water temperature raises and then evaporates .