1) The answer is:
B) a leaf blowing across the field .
The explanation:
when
translational motion is the motion by which a body shifts from one point in space to another. One example of translational motion is the the motion of a bullet fired from a gun. An object has a rectilinear motion when it moves along a straight line.
2) The answer is:
reference system .
The explanation:
when:
the reference system is a coordinate-based local, regional or global system used to locate geographical entities. A spatial reference system defines a specific map projection, as well as transformations between the different spatial reference system