The seasons are caused as the Earth, tilted on its axis, travels in a loop around the Sun each year. Summer happens in the hemisphere tilted towards the Sun, and winter happens in the hemisphere tilted away from the Sun. ... The poles remain cool because they are never tilted in a direct path of sunlight.
Xerostomia
The medical term for this condition is xerostomia. Xerostomia
refers to abnormal dryness of the mouth which may be caused by a reduction in
the volume of saliva. Saliva is an important fluid in the body that assists to
protect and maintain oral health.
Answer:
D. glycosidic link
Explanation:
A glycosidic link is a covalent bond that holds two monosaccharides together.
Hope that helps.