NaCl (Sodium chloride)
LiF (Lithium fluoride)
B. The sand increases friction by increasing roughness.
Greater than 23mcg/dl is considered a high level of morning cortisol.
Normally, cortisol levels rise during the early morning hours and are highest about 7AM. They drop very low in the evening and during the early phase of sleep. If you do not have this daily change (diurnal rhythm) in cortisol levels, you may have overactive adrenal glands. This condition is called Cushing's syndrome.
1) acid
2) ether
3) ester
4) aldehyde
5) ketone
6) amine
7) alcohol
