All public swimming pools should have a lifeguard on duty because not everyone can swim or someone may have an accident. The life guard who can swim should be on watch to keep those accidents from happening and prevent people drowning.
Because <span>Algeria had a large settler community made up of French-speaking Europeans.</span>
Simple. The Columbian Exchange exchanged diseased, people, plants, food, and animals. The Americas adapted with new plants and animals like cattle, chicken, etc., and more slaves. Europe gained potatoes, tomatoes, corn, squash, punpkin, etc.
New societies could depend on new sources of food, new animals. That also improved their local economy, and knowledge (learning)
I beleive the correct answer is government regulation
