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.
Oak trees can grow to 100 feet tall, and have a spread of 150 feet across. Other notable traits of the oak tree include: 1  Leaves: The simple leaves consist of a single elliptical shape and a solid stem. 2  They vary in size from two to five inches in length and rarely exceed two inches in width.