Suppose that Biuret reagent turns purple when it is added to an unknown substance. What can you conclude about the substance?

Which statement about portugal is not true? a. it granted independence to its last colony in 1975 b. it has avoided conflict with spain c. it was a leader in european world exploration in the 1400s d. its economy is changing from agricultural to industrial b. it has avoided conflict with spain

How have citizens in aralsk adapted to the changes brought about by the shrinking of the sea?

In russia which of these challenges affects the transportation of both petroleum products and other goods? a poorly repaired roads b harsh weather and vast distances c frozen waterways d separatist movements