Difference between plough and tractor

Which theory suggested that the earth was once a signle supercontient that gradually that broke up into the contients that we know today

Explain why the rate of urbanisation is in the way it is between developed and undeveloped countries.

Which statements describe sustainable development? multiple answer choice -fishing does not remove more fish from water systems than can be replaced by the number of fish that will be born to replace them. -sustainable development is development that is designed to improve the economic conditions in less-developed countries. -sustainable development is mainly a regional issue. -sustainable development means water is used at a rate that won't reduce the amount available for future use. - sustainable development policies only need to be concerned with environmental protection. - trees cannot be cut down faster than the number that will be replaced by new growth.