Why is the line-item veto considered to be unconstitutional?

Which of the following events did not occur as a result of china’s open-door policy? a. trade between japan and china was encouraged. b. all countries were given equal access to chinese ports. c. foreign influence in china increased. d. the influence of the communist party weakened.

From the standpoint of geography,a is an internal rendering of an individual's known world

Plzz on what physical process is responsible for the creation of volcanoes, earthquakes and ocean trenches at the plate margins?