Afold in rock that bends upward into an arch is called a(n)
a. anticline.
b. syncline.
c. plateau.
d. canyon.

Hello! It is an anticline. An anticline is a denomination given by structural geology, which indicates that a particular structure has a convex fold that goes towards the more recent strata, forming a kind of "wave" mark in the rocks. It is possible to find such structure in several places of the planet. Letter a) Anticline Hugs!Hope this helps. Let me know if you need additional help!

The answer is anticline

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].