What key event united the greek city-states to a greater degree than they had been before? a the establishment of a constitution by solon b the development of democracy in athens c the fighting of the persian wars d the formation of the delian league

What structure on the south african coast has a range of 63 km and releases flashes every 30 seconds?

Which year held a congressional election and a presidential election

The us and canadian governments are doing all of the following to combat environmental problems except a. encouraging the use of public transportation b. enacting clean water policies c. requiring emissions testing d. limiting animal populations in some regions