Answer:
Explanation:
The reason is that the ultra violet Ray from the sun. This UV emissions from the sun is dangerous to the skin as it damage the genetic material or DNA . If there is much build up damage to the cells, it can lead to the cells to continue to grow or replication without control or uncontrollable and hence can result to cancer.
Normally, you can see them, as they are blue in color.. But with todays technology, there is a device that allows you to find the vein using the light, most places do not use it.. The typical way to find a vein in an arm is to use a <span>constricting band</span>
Answer:
Areas where the air is warmed often have lower pressure because the warm air rises. These areas are called low pressure systems. Places where the air pressure is high, are called high pressure systems. A low pressure system has lower pressure at its center than the areas around it.
Explanation:
Mark brainiest'
That’s an interesting question my friend:
Yes they do sleep
Answer:
Explanation:
Geologic time is divided into four large segments called Eons: Hadean, Archean, Proterozoic, and Phanerozoic. The Phanerozoic Eon is divided into Eras: Paleozoic, Mesozoic, and Cenozoic. The divisions among Eras reflect major changes in the fossil record, including the extinction and appearance of new life forms.