Posts Tagged ‘fertilizer’

I NEED HELP PRETTY PLEASE?

Posted on June 7th, 2010 by admin  |  Comments Off

Question 1 (Multiple Choice Worth 2 points)

All of the following are disadvantages of dams except

high cost

damage to the environment

hydroelectric power

land erosion

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Question 2 (Multiple Choice Worth 2 points)

The absorbing of the sun’s heat by concrete and asphalt can have the following effect on an urban area

Higher temperatures than surrounding areas

Unpredictable weather patterns

Increased levels of acid rain

Rapid deterioration of buildings

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Question 3 (Multiple Choice Worth 2 points)

One of the primary components of fertilizer is ____________ which can be harmful if it gets in drinking water

table salt

nitrogen

cow pies

potassium

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Question 4 (Multiple Choice Worth 2 points)

Which of the following activities would most likely aid in desertification?

Pollution from a nearby city

Overgrazing

Building a large dam

Moderate farming

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Question 5 (Multiple Choice Worth 2 points)

Water pollution can be caused by all of the following except

Urbanization

Excessive fertilization

Rerouting a river

Mining

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Question 6 (Multiple Choice Worth 2 points)

Rerouting a river would have no effect on which group

A population of fish that lives downstream

Farmers that live upstream

Migratory herds that drink from the waters

A population of people that live downstream

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Question 7 (Multiple Choice Worth 2 points)

All are problems caused by urbanization except

Destruction of natural habitat

Pollution of water supplies

Stretched recourses to support life

Increased rainfall

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Question 8 (Multiple Choice Worth 2 points)

Desertification

Will typically increase the amount of erosion in an area

Does not have any effect on the level of vegetation

Decreases the amount of salt in the soil

Increases the ability of the land to support life

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Question 9 (Multiple Choice Worth 2 points)

Native farmers in a small town are clearing massive areas of trees to plant crops. This is an example of

desertification

sharecropping

deforestation

urbanization

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Question 10 (Multiple Choice Worth 2 points)

Deforestation typically

Only occurs through man-made processes

Increases erosion in an area

Increases carbon dioxide exchange

Helps stabilize soil erosion

can you get it right try to find out?

Posted on June 6th, 2010 by admin  |  1 Comment »

Question 1 (Multiple Choice Worth 2 points)

Deforestation can result in

loss of living space for animals

increased flooding

rapid change in climate

obstruction of views

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Question 2 (Multiple Choice Worth 2 points)

One of the primary components of fertilizer is ____________ which can be harmful if it gets in drinking water

table salt

nitrogen

cow pies

potassium

——————————————————————————–

Question 3 (Multiple Choice Worth 2 points)

Native farmers in a small town are clearing massive areas of trees to plant crops. This is an example of

desertification

sharecropping

deforestation

urbanization

——————————————————————————–

Question 4 (Multiple Choice Worth 2 points)

Water pollution can be caused by all of the following except

Urbanization

Excessive fertilization

Rerouting a river

Mining

——————————————————————————–

Question 5 (Multiple Choice Worth 2 points)

All are problems caused by urbanization except

Destruction of natural habitat

Pollution of water supplies

Stretched recourses to support life

Increased rainfall

——————————————————————————–

Question 6 (Multiple Choice Worth 2 points)

In which type of urban area would you expect the warmest temperature?

Small town with dirt roads and wood buildings

Medium sized city with high density of buildings and roads

Suburbs of a large city

Large city with high density of buildings and roads

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Question 7 (Multiple Choice Worth 2 points)

All of the following are disadvantages of dams except

high cost

damage to the environment

hydroelectric power

land erosion

——————————————————————————–

Question 8 (Multiple Choice Worth 2 points)

Which of the following processes will increase the chance of erosion in an area?

urbanization

deforestation

toxification

desertification

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Question 9 (Multiple Choice Worth 2 points)

A large area in a semi dry climate has been greatly affected by a decrease in rainfall over the last several years. This area is in danger of

urbanization

deforestation

toxification

desertification

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Question 10 (Multiple Choice Worth 2 points)

Rerouting a river would affect which of the following

A population of fish that lives downstream

Migratory herds that drink from the waters

A population of people that live downstream

All of the above

Anyone heard of green rooftop landscaping? If so, what are some of the disadvantages?

Posted on June 3rd, 2010 by admin  |  1 Comment »

In some major urban areas, building construction is taking away land for planting grass and trees. To make up for the scarce land resources, some buildings have grass and lightweight trees planted on their rooftops. The grass is not the typical kind we see on someone’s lawn, but rather a rugged, durable type of grass that doesn’t require artificial watering or fertilizing. It also acts as a natural air-conditioner for the top floors of a building, keeping them cooler during the summer and warmer in the winter. If done on a large scale, the environmental benefits seem effective. But is their a down side to this as well?
Some great answers so far. The reason I asked is because I’ve been asked to take part in a large-scale project for rooftop landscaping in China (mostly translating for them). They are using a type of grass (They call it Fojia grass – part of the sedum family) that only requires a finger digit’s length of soil to grow. The roots are non-penetrating so they don’t harm the roof structure. The grass doesn’t need cutting, and the older grass serves as fertilizer for the seedlings when it falls. Because of the dry temperatures in northern China, excess water on the rooftop is never a probelm. I’ve heard of several benefits but I want to be aware of any doubts people have so I can address them properly. Seems like a worthy cause, best to be prepared.