Scientists have noted patterns in the Earth's seafloor structures. For example, volcanic ridges are typically located in the center of the oceans, and trenches are typically located along the edges of continents. In addition, seafloor rocks found at the trenches are usually older than seafloor rocks found at the volcanic ridges. Which explanation of the past movement of the Earth's plates is best supported by this information?

past movement of the Earth's plates is best supported by : seafloor rocks found at the trenches are usually older than seafloor rocks found at the volcanic ridges.

Explanation:

The statement that refers to the origin of the rocks of the earth that have formed the plate tectonics, which is represented by their ages as the spreading of the seafloor is concerned.  The older rocks found at the margin of the continents and the younger are found near the volcanic ridges and they have formed some 200 million years ago.

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].