Which of the following has not occurred as a result of oil production and distribution around the persian gulf?
a. leakages polluting the water near ocean terminals
b. particles in the atmosphere clearing the surrounding air
c. loss of plant and animal life due to pollution
d. low co2 emissions per capita

The low of CO2 emission per capita has not yet occurred as a result of oil production and distribution around the Persian Gulf, however, all the leakages polluting the water near the ocean terminals, particles in the atmosphere clearing the surrounding air, and loss of plant and animal life due to pollution has been done. 

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].

Ihave no idea. about. that