What are three most important fossil fuels

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.

examples of nucleic acids are deoxyribonucleic acid (dna) and ribonucleic acid (rna).

what are the awnser choices? i mean, without choices, it is an incompleat

the sun creates it's own light, also gives light and life to bunch of stuff like plants,animals,humans etc.photosyntesis is the process of making food which needs sun,water,nutrients etc.