1)Sustainability is to make sure the needs of the country are met and the need of the future are met

2)we can make are liver more sustainable by reduce the amount of packaging and using less plastic

3)if a few animals become extinct the ecosystem will start to collapse because more animals will start to die because the food has gone

4) as the sea otters numbers decline the number of sea urchins increase because the sea otters use to eat them that meant that the fish stock decline

5)