In hot deserts we also find plateau land– with flat tops.

landscape or landform with flat top.

Explanation:

A desert is a barren landscape that consists of very little rainfall. Lack of vegetation and unprotected surface makes the soil weak and prone to erosion. They cover one-third of the surface of the earth and have a semi-arid type of climate.  A plateau consists of a flat elevated landform that rises sharply above the surrounding area. Soft rocks are often eroded at the top of a plateau. The caprocks protect its surface from erosion.

D.haka is the first answer and a.canberra is the second answer

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].