6 or 7
A child's 20 baby teeth, which often come in by age 3, usually fall out in the same order they came in. That means the lower center teeth (lower center incisors) are usually the first to go, around age 6 or 7. The top center pair is next.
I think it’s b sorry if i’m wrong
Emergence of disease
Bursts of algae growth
Collapse of fish -populations
