What is the primary composition of sweat? 99% water. 1% salt & waste 50% water. 50% salt 70% water. 30% oil 100% salt Question 45 Which layer of skin is the most outer layer? hypodermis epidermis dermis

The primary composition of sweat is 99% water, 1% salt and waste. Therefore, the correct answer is:<br /><br />- \(99\%\) water, \(1\%\) salt and waste<br /><br />For Question 45, the most outer layer of the skin is the epidermis. Therefore, the correct answer is:<br /><br />- epidermis