Answer:
Carbohydrates contain only carbon, hydrogen and oxygen atoms; prior to any oxidation or reduction, most have the empirical formula Cm(H2O)n. Compounds obtained from carbohydrates by substitution, etc., are known as carbohydrate derivatives and may contain other elements.
Explanation:
The answer is A. Highland climate occurs mainly in the highlands where the lands are tall, in meters above the sea level then most of the most surrounding lands. These regions are characterized by high precipitation and cool temperatures because of the lands force warm air current up to the cooler atmosphere. The warm air current cool and their water content condenses and precipitates as rain.
