There aren't enough oxygen molecules in the air are higher altitudes
Answer:
False
Explanation:
Radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium which therefore means that radiation doesn't require particles or matter.
Answer:
stratum corneum
Explanation:
Keratin is a structural protein that builds up hair, skin and nails.
The stratum corneum is the outer most layer of the epidermis that contains Keratinized cells. It serves as the primary protective barrier. Its thickness varies throughout the body .
The hair shaft is the part of the hair seen above the skin. Just like the stratum corneum , it is also made up of the protein keratin compacted and fused together.
