Tuesday, March 6, 2007

Water Pollution: Deforestation

Your Homework for the March holidays

Deforestation is also a cause for water pollution!

•Find out what is ‘Deforestation’.

•How deforestation causes water pollution.

Post your answer by clicking on comment and remember to start with writing your name eg. John says: Deforestation is ........


30 comments:

Anonymous said...

Aravind says:
Deforestation is to clear the trees and forests by cutting and burning. Due to this, the soil is not held together by the roots of plants. The rain and wind will wash away the soil. This cause the water to be polluted by the soil.

Anonymous said...

Wahyada says:

Deforestation is to cut down and clear the trees from the forest

Anonymous said...

Daniel says:Deforestation presents a lot of societal and environmental plobems.The immediate and long terms of deforestations are almost certain to jeopardize Earth!Some of this consequences includes:cutting down and burning down the trees,climate distruction and the loss of biodiversity.

Anonymous said...

yiyin says:Deforestation is to cut down and clear the trees from the forest.

Anonymous said...

Supriya says:Deforestation is the removal of forests by cutting and burning to provide land for agricultural purposes,residential or industrial building sites,roads,etc

Anonymous said...

Deforestation is when people clear the forest by burning and cutting.

Anonymous said...

Ms Soo says:

Yes, deforestation is the clearing of forests by burning or cutting. Why do people want to clear the forests? What other problems do you think deforestation will cause?

Anonymous said...

Supriya says:People clear the to build industries,roads and for agricultural purposes.Many animals and plants lose their homes when we cut down the forests.Living things also will not get enough oxygen.

Anonymous said...

Jeff says:

Deforestation is the process of destroying a forest and replcing it with something else. The term is used today to refer to the destruction of forest beings and the replacement by agricultural systerms.

Anonymous said...

rika says :
Deforestation involves the cutting down, burning, and damaging of forests.

Anonymous said...

Monica says:
Deforestation is the process where people cut or burn trees to build roads and estates

Anonymous said...

cai jin say:a) The carbon cycle. Forests act as a major carbon store because carbon dioxide (CO2) is taken up from the atmosphere and used to produce the carbohydrates, fats, and proteins that make up the tree. When forests are cleared, and the trees are either burnt or rot, this carbon is released as CO2. This leads to an increase in the atmospheric CO2 concentration. CO2 is the major contributor to the greenhouse effect. It is estimated that deforestation contributes one-third of all CO2 releases caused by people.

b) The water cycle. Trees draw ground water up through their roots and release it into the atmosphere (transpiration). In Amazonia over half of all the water circulating through the region's ecosystem remains within the plants. With removal of part of the forest, the region cannot hold as much water. The effect of this could be a drier climate.

* Soil erosion With the loss of a protective cover of vegetation more soil is lost.

* Silting of water courses, lakes and dams This occurs as a result of soil erosion.

* Extinction of species which depend on the forest for survival. Forests contain more than half of all species on our planet - as the habitat of these species is destroyed, so the number of species declines (see Enviro Facts "Biodiversity").

* Desertification The causes of desertification are complex, but deforestation is one of the contributing factors (see Enviro Facts "Desertification")

a) The carbon cycle. Forests act as a major carbon store because carbon dioxide (CO2) is taken up from the atmosphere and used to produce the carbohydrates, fats, and proteins that make up the tree. When forests are cleared, and the trees are either burnt or rot, this carbon is released as CO2. This leads to an increase in the atmospheric CO2 concentration. CO2 is the major contributor to the greenhouse effect. It is estimated that deforestation contributes one-third of all CO2 releases caused by people.

b) The water cycle. Trees draw ground water up through their roots and release it into the atmosphere (transpiration). In Amazonia over half of all the water circulating through the region's ecosystem remains within the plants. With removal of part of the forest, the region cannot hold as much water. The effect of this could be a drier climate.

* Soil erosion With the loss of a protective cover of vegetation more soil is lost.

* Silting of water courses, lakes and dams This occurs as a result of soil erosion.

* Extinction of species which depend on the forest for survival. Forests contain more than half of all species on our planet - as the habitat of these species is destroyed, so the number of species declines (see Enviro Facts "Biodiversity").

* Desertification The causes of desertification are complex, but deforestation is one of the contributing factors (see Enviro Facts "Desertification")

a) The carbon cycle. Forests act as a major carbon store because carbon dioxide (CO2) is taken up from the atmosphere and used to produce the carbohydrates, fats, and proteins that make up the tree. When forests are cleared, and the trees are either burnt or rot, this carbon is released as CO2. This leads to an increase in the atmospheric CO2 concentration. CO2 is the major contributor to the greenhouse effect. It is estimated that deforestation contributes one-third of all CO2 releases caused by people.

b) The water cycle. Trees draw ground water up through their roots and release it into the atmosphere (transpiration). In Amazonia over half of all the water circulating through the region's ecosystem remains within the plants. With removal of part of the forest, the region cannot hold as much water. The effect of this could be a drier climate.

* Soil erosion With the loss of a protective cover of vegetation more soil is lost.

* Silting of water courses, lakes and dams This occurs as a result of soil erosion.

* Extinction of species which depend on the forest for survival. Forests contain more than half of all species on our planet - as the habitat of these species is destroyed, so the number of species declines (see Enviro Facts "Biodiversity").

* Desertification The causes of desertification are complex, but deforestation is one of the contributing factors (see Enviro Facts "Desertification")

a) The carbon cycle. Forests act as a major carbon store because carbon dioxide (CO2) is taken up from the atmosphere and used to produce the carbohydrates, fats, and proteins that make up the tree. When forests are cleared, and the trees are either burnt or rot, this carbon is released as CO2. This leads to an increase in the atmospheric CO2 concentration. CO2 is the major contributor to the greenhouse effect. It is estimated that deforestation contributes one-third of all CO2 releases caused by people.

b) The water cycle. Trees draw ground water up through their roots and release it into the atmosphere (transpiration). In Amazonia over half of all the water circulating through the region's ecosystem remains within the plants. With removal of part of the forest, the region cannot hold as much water. The effect of this could be a drier climate.

* Soil erosion With the loss of a protective cover of vegetation more soil is lost.

* Silting of water courses, lakes and dams This occurs as a result of soil erosion.

* Extinction of species which depend on the forest for survival. Forests contain more than half of all species on our planet - as the habitat of these species is destroyed, so the number of species declines (see Enviro Facts "Biodiversity").

* Desertification The causes of desertification are complex, but deforestation is one of the contributing factors (see Enviro Facts "Desertification")
a) The carbon cycle. Forests act as a major carbon store because carbon dioxide (CO2) is taken up from the atmosphere and used to produce the carbohydrates, fats, and proteins that make up the tree. When forests are cleared, and the trees are either burnt or rot, this carbon is released as CO2. This leads to an increase in the atmospheric CO2 concentration. CO2 is the major contributor to the greenhouse effect. It is estimated that deforestation contributes one-third of all CO2 releases caused by people.

b) The water cycle. Trees draw ground water up through their roots and release it into the atmosphere (transpiration). In Amazonia over half of all the water circulating through the region's ecosystem remains within the plants. With removal of part of the forest, the region cannot hold as much water. The effect of this could be a drier climate.

* Soil erosion With the loss of a protective cover of vegetation more soil is lost.

* Silting of water courses, lakes and dams This occurs as a result of soil erosion.

* Extinction of species which depend on the forest for survival. Forests contain more than half of all species on our planet - as the habitat of these species is destroyed, so the number of species declines (see Enviro Facts "Biodiversity").

* Desertification The causes of desertification are complex, but deforestation is one of the contributing factors (see Enviro Facts "Desertification")
a) The carbon cycle. Forests act as a major carbon store because carbon dioxide (CO2) is taken up from the atmosphere and used to produce the carbohydrates, fats, and proteins that make up the tree. When forests are cleared, and the trees are either burnt or rot, this carbon is released as CO2. This leads to an increase in the atmospheric CO2 concentration. CO2 is the major contributor to the greenhouse effect. It is estimated that deforestation contributes one-third of all CO2 releases caused by people.

b) The water cycle. Trees draw ground water up through their roots and release it into the atmosphere (transpiration). In Amazonia over half of all the water circulating through the region's ecosystem remains within the plants. With removal of part of the forest, the region cannot hold as much water. The effect of this could be a drier climate.

* Soil erosion With the loss of a protective cover of vegetation more soil is lost.

* Silting of water courses, lakes and dams This occurs as a result of soil erosion.

* Extinction of species which depend on the forest for survival. Forests contain more than half of all species on our planet - as the habitat of these species is destroyed, so the number of species declines (see Enviro Facts "Biodiversity").

* Desertification The causes of desertification are complex, but deforestation is one of the contributing factors (see Enviro Facts "Desertification")

Anonymous said...

sarah says:

Deforesation is clearing of forests by cutting or burning.When the forest is removed,the soil becomes exposed.
It pollutes water when the plants has no roots to hold on to the soil,wind and rain will move large amounts of soil from the ground into nearby water bodies, pollutingthe water.

Anonymous said...

Daniel says:
I think people want to clear the forest for different types of land useage

Anonymous said...

DHARISHINI says:WHAT IS DEFORESTATION??
Deforestation is the removal of trees from the forest for agriculture or urban development.Defostation can also be caused by grazing and fires in the forest.
HOW DEFORESTATION CAUSES WATER POLLUTION???
Water polluted by the soil becomes cloudy,sunlight cannot reach the water plants.Therefore,the plants in the water cannot photosynthesise and will die.Other living things that depend on these plants for food will be affected too.

Anonymous said...

Dharishini says:Deforestation is the clearing of forests by cutting or burning.

Cynthia Seto said...

Can Daniel or one of you elaborate on the loss of biodiversity and the societal problems caused by deforestation?

Anonymous said...

It means that deforestation will result in extinction of the various types of animals and at the same time affect the balance of nature.

Anonymous said...

Daniel says:
It means that deforestation will result in extinction of the various types of animals and at the same time affect the balance of nature.

Anonymous said...

Jarod says:
Deforestation is clearing of forests by cutting or burning. When the forestis removed ,the soil becomes exposed.

Anonymous said...

natasha said...
Natasha says:
deforestation is a type of waterpollution.
People cut or burn the trees down so, the leaves cannot photosynthesise and the living things on Earth cannot take in oxygen.
Soilbecomes exposed and is moved by wind and rain to water bodies.

Anonymous said...

ahsifah(1) says: when forest are cut or burn in large numbers (deforestation)'the soil is exposed.Rain and wind can easily move the soil into rivers and pollute the water.when water is polluted 'it is no longer clean and safe to use.

Anonymous said...

mskr555

Anonymous said...

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Anonymous said...

Brian say that the effecs of deforestation is very bad.People and other animals can diet protect the plants., we mus

Anonymous said...

tyryhruru

Anonymous said...

Brian says:
my brother accidentally write wrongly and forget to put anonymous.

Anonymous said...

hello!!!

Anonymous said...

Hey !4love !

Anonymous said...

Sinclair said :

I wonder if you know me . By the way , i am sinclair . Deforestation is people cut down trees so that they can get a piece of land. When they burn , they will have smoke . Then , there was once , Singapore had a fog . I wonder if all of you remember . By the way , hope you have a happy learing journey ! BYE !