An economic slump due to the government over spendings in Vietnam
Answer:
The first one
Explanation:
Columbus was trying to find a way to get to Asia in order to be able to access its spices and its other materials
They brought different things with them, like different beliefs and religions. They also brought different technologies as in tools.
Whenever we look at a flat surface (a picture, a television screen) and assume we are looking at spaces and objects that have depth, we are accepting a set of visual signals that create an illusion of three dimensional space. 3D cues are so common today that we are almost unaware of them.