5 Points
What is true about black and white shirts in the summer?
O
O
O
A. White shirts absorb more and reflect less radiation.
B. Black shirts absorb more and reflect less radiation.
C. White shirts absorb and reflect more radiation.
O
D. Black shirts absorb and reflect more radiation.

Option B is correct

Explanation: This is because light energy can be converted into heat. Light is an electromagnetic radiation of wave length, black color absorbs all the wave length (light) and converts them into heat, this means if a person is wearing black in summer he will feel more heat and be warmer, while white color on the other hand reflects the light back so it is not converted to heat, this means a person wearing white in summer will feel less heat.

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.

geologic time scale (for gradpoint) =)