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.
Common types of oaks with lobed and pointed leaves are the Red (or Northern Red) Oak, Black Oak, Cherry Bark Oak, Pin Oak, and Scarlet Oak. The leaves on these types of oak trees can have anywhere from 8 to 12 lobes. Each lobe has a point on the end. They can grow up to 8â² long.