Why was a severe downturn in oil prices during the early '80s detrimental to the soviet economy? it was an oil-exporting nation. it did not have enough oil to survive. it lost an important bargaining chip. it was an oil-importing nation.

How was the method of making pottery by using coils of clay better than simply shaping the clay by hand? it prevented pottery from cracking when fired. it created a watertight seal. it produced more attractive pottery. the pottery could be cut or stamped with designs.