The metric system is an alternative system of measurement used in most countries, as well as in the United States. The metric system is based on joining one of a series of prefixes, including kilo-, hecto-, deka-, deci-, centi-, and milli-, with a base unit of measurement, such as meter, liter, or gram. (got the answer from google hehe)
Cause of cellulose! the plant's cell wall is composed if cellulose
Answer: it lets for room for more buildings to be built
Explanation: