Which statements describe sustainable development?

1.)fishing does not catch more fish than the number that will be born to replace them.
2.)sustainable development is development that is designed to improve the economic conditions of populations in the world's less-developed countries.
3.)sustainable development is mainly a local issue.
4.)sustainable development means water use is kept at a level that doesn't reduce the amount available for future use.
5.)sustainable development policies must consider both environmental protection and economic development.
6.)trees cannot be cut down at a rate that exceeds the number that will be replaced by new growth.