What advancement in the use of metal was achieved by the people of the Gupta Empire? They were the first civilization to mine iron ore. They came up with methods to convert iron into steel. They created methods to extract metal from ore. They were the first civilization to work with bronze.

The main reason that the royal society of london developed the modern form of peer review was to: award grant funding. decide on promotions for researchers. streamline the publication of conference proceedings. control the quality of published papers.

What was the underlying cause of the cold war?

Why was the u.s. annexation of hawaii delayed until william mckinley became president? a: the rebels who overthrew queen liliuokalani opposed u.s. annexation. b: the senate did not approve the treaty of annexation until mckinley entered the white house. c: supporters of the nationalist cause were in the majority in hawaii until 1898. d: mckinley’s predecessor, grover cleveland, refused to sign the treaty of annexation.