Introduction:The typical definition of eutrophication is 'decrease in the levels of oxygen in the water bodies due to effects of excessive use of chemical fertilisers.' This statement clearly tells us all about the cause of the problem of eutrophication.
Oak is a common wood, yet many people arenât aware that there are two distinct species â red oak and white oak. Between the two, there are only subtle differences when it comes to durability, hardness, and cost. Color and grain pattern are the distinguishing features that set red oak and white oak apart.
Some of the most common types of oak trees leaves are Black Oak, Bur Oak, Cherry Bark Oak, and Live Oak. Others are Post Oak, Pin Oak, Northern Red Oak, Scarlet Oak, and Shumard Oak. All of these are commonly found in North America because oak trees are the most common types of trees in North America.