In January and February, you should set your thermostat to about 68 degrees Fahrenheit. What can you infer about the prefix "thermo?"

(Brain pop)

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.

c is the answer to this question. altitude affects the weather because air molecules evaporate.