Showing posts with label articles. Show all posts
Showing posts with label articles. Show all posts

Ten Important Reasons To Save Trees

                                                         
Trees are among the most precious and valuable gifts given to us by nature and we need to save them.Saving trees is one of the biggest needs of today.It is important to save trees because life exists on the earth due to them,  all living things on the planet earth are directly or indirectly dependent on trees for their survival.
Besides providing shelter and food for mankind and for other living creatures there are so many reasons to save trees and here are a few important reasons out of those :-

1. Trees produce oxygen- As we all know that we can't breathe without oxygen and trees provide it for us. One tree produces two hundred and sixty pounds of oxygen every year on an average. Two mature trees can produce enough oxygen for a family of four members.

2.Trees clean the air-Trees play an important role in cleaning the air by removing carbon dioxide from the atmosphere and by intercepting the airborne particles like fog, dust and smoke.Trees also absorb odors and the harmful pollutant gases like sulfur dioxide , carbon monoxide, nitrogen oxides and bad ozone. They improve the quality of air by filtering out pollution particulates, they trap them on their leaves and barks.

3.Trees bring rain-Trees help to increase rainfall due to the process of transpiration.The leaves, stems and flowers of trees release water as water vapor in the air. This water vapor adds moisture in the air and makes it saturated and then the rainfall occurs.

4. Trees prevent soil erosion-Trees protect the soil against the ravages of wind and rain.Strong roots of trees hold the soil in place and prevent it from getting washed or blown away due to water or air respectively. Thus , trees protect the soil surface . By this way trees help to counter any long-term damage to our environment.

5.Trees reduce the heat and boost air conditioning-Trees help to reduce the temperature of air by blocking the sunlight. As mentioned above a tree releases water as water vapor in the air through the process of transpiration. This conversion of water to water vapor helps to remove heat energy from the air.
Trees also work as a natural air conditioner .A single tree can produce the cooling effects of 10 room size air conditioners. Trees can reduce the air-conditioning needs by at least 30 percent if we place them properly around buildings.

6.Trees save water -Trees can save water as the shade provided by them slows down water evaporation.They prevent the slow loss of water by increasing the atmospheric moisture.Trees slow down water runoff and help to recharge groundwater.According to the experts, trees with deep roots can help ground water recharging during monsoon season.

7.Trees control flood-Trees can trap a large amount of water with the help of their roots.They prevent water runoff during heavy rain fall that can cause flooding. 

8. Shade of trees protect us from ultra-violet rays-The shade of trees protect you from the harmful effects of the sun's ultra-violet rays,these rays  can cause the skin cancer.Trees could reduce the risk of skin cancer by providing protection against sun exposure.They can reduce the UVB exposure by about 50 percent.

9.Trees increase the value of property-Trees add beauty to a place.Researches say that people love to buy a house or a property surrounded by green trees.Trees around a property can increase its value by more than 15 percent.

10. Trees provide medicines- Trees have always been an important source of a wide variety of medicines.Today about 50,000 plant species are used to make medicines.The extract of leaves, barks, roots ,seeds, wood and flowers of different trees have been used to make medicines to cure different types of diseases.In fact trees provide a wealth of useful remedies for human race.
These are only a few reasons among uncountable reasons to save trees but are enough to help us to understand the importance of saving trees. If we want to save our future we must Save Trees.




You might also like the poem Come and plant a tree                                         

The Pencil Story

Hello dear friends,  you know me well ! I am your little Pencil, you use me to write on paper and to make beautiful drawings or sketches.I am a useful little instrument for students as well as professionals.
                                               
Today I am sharing some information about me with all of you. I hope that you will find it interesting.
Most of the people think that a pencil is made of lead but the fact is that is that pencil contains no lead. A pencil is made of Graphite which is the form of carbon. Earlier people used to call Graphite black lead.                       
                                                   
                                                           
A very large amount of Graphite(Black Carbon) was found in Cumbria (England) at a place called Borrowdale. It was the time before 1565. The people of that place found it very useful to mark their sheep. It was pure and solid to be divided into sheets. The sheets were cut into sticks.These graphite sticks or rods were placed between two wooden halves,these halves then glued together to form a pencil. That is how pencil came into existence.
  

Later in the year
1795 , a French officer Nicolas Jaques Conte developed the method of mixing clay with powdered Graphite
and forming the mixture into rods.The making of modern pencil is based on that method.



Today different grades of pencil are in use .The most popular and common pencil which people normally use for writing is HB grade pencil. 9H is the hardest and 9B is the softest pencil.
 Now let me tell you one more thing that how I got my name.The word Pencil comes from the Latin word Penicillus which means the little tail.
So this is my little story, 'The Pencil Story'.