12. Economic growth results in: A. a fall in the quality of air, the extinction of native plants and animals, and the destruction of healthy
rivers and oceans.
B. greater consumer choice, better health and longer life expectancy.
C. the growth of cities and of urban problems such as traffic congestion and waste disposal.
D. all of the above.

2/6 of be by to 2/6 is to 24/72 ?

During metamorphic processes, increased pressure and temperature can affect the of minerals in rock. rocks subjected to very high pressure are typically than others because mineral grains are squeezed together, and the atoms are more closely packed. during metamorphic processes, water facilitates the transfer of ions between and within minerals, which can the rate at which metamorphic reactions take place. the growth of new minerals within a rock during metamorphism has been estimated to be about per million years. metamorphism is commonly associated with convergent plate boundaries, where two plates move toward each other. during contact metamorphism, a large intrusion will contain thermal energy and will cool much more slowly than a small one. metamorphosed sandstone is known as the metamorphic rock made from metamorphosed shale, was once used to make blackboards for classrooms

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