The issue of safety in the classroom is rarely considered at such a foundational level. Considering that a participant on a playground can break a leg, or worse, safety occupies a central role in a designerâs thinking.
The Amazon basin is the largest drainage basin in the world, about 7,050,000 square kilometres (2,720,000 sq mi), and accounts for approximately one-fifth of the world's total river flow.he Amazon River and its tributaries are characterized by extensive forested areas that become flooded every rainy season. Every year, the river rises more than 9 metres (30 ft), flooding the surrounding forests, known as varzea (vÃ¡rzea flooded). forests
Amazon River flood of 1953. The Amazon River basin, by far the largest river basin in the world, is responsible for 20 percent of the world's discharge of freshwater into the oceans. Seasonal floods cover an area as large as 140,000 square miles every year.he Amazon River basin, by far the largest river basin in the world, is responsible for 20 percent of the world's discharge of freshwater into the oceans. Seasonal floods cover an area as large as 140,000 square miles every year.