An unstable government is one that

a.

is democratically elected

b.

is authoritarian

c.

changes hands frequently

d.

provides for its citizens

The correct answer is C. changes hands frequently

That means that there is no consistency in their work which only means bad things for the state. Laws keep getting changed and people become angrier and angrier with the government.

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].

Answer erosion,oil spills,pollution,tourism,urban development;