Acollision could occur when the distance decreases and bearing between two vessels does what

A collision could occur when the distance decreases and bearing between two vessel REMAIN UNCHANGED.
It is the responsibility of vessel operators that they are on look out and avoid all possibility of collision with other vessels. Operators are expected to operate at controlled speed, avoid careless boat operations and steer clear of restricted facilities.

Amath expression is a collection of one or more terms, which are separated by the signs ( + , - , x , / ).example :   8+b8+b  or  a−3a−3in algebra, an equation is a mathematical statement with two expressions where, each expression is separated by an equal (=) sign. variables can be present on both the sides of the equality (=) sign and we use letters to denote such variables.example 1:   x=4+2x=4+2  , [here, we can observe that the variable is present only on one side of the equation].example 2:   2x+3=x+42x+3=x+4  , [here, we can observe that the variables are present on both side of the equation].

Answergoogle earth; i believe this is the correct answer, plz check first;