On the richter scale of earthquake intensity:

group of answer choices
the ground is shaken 10 times less by a magnitude-8 quake than by a magnitude-7 quake.
a magnitude-7 quake is impossible; nothing that big can occur.
the ground is shaken 10 times less by a magnitude-7 quake than by a magnitude-8 quake.
the ground is shaken twice as much by a magnitude-8 quake as by a magnitude-4 quake.
the ground is shaken 8 times more by a magnitude-8 quake than by a magnitude-1 quake.

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.