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Final Ex Topic 17 Glaciers
Biogeochemical cycles
13
Biology
Undergraduate 3
05/11/2011

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Cards

Term
What is the Pasterze?
Definition
Austria's longest glacier was 2 km longer in the 19th century. It is now a dammed artificial lake
Term
What part of the United States are glacier shrinking?
Definition
Northwest.
Term
Explain how the water cycle works in general.
Definition

Water cycle is the perfect cycle.

  • evaporation comes back into the atmosphere. Warm moist air and get cold air and get water. Soil sucks up water to the underground storage. Ground water will flow downhill to the water again.
Term
97% of Earth's water is in salty seas. Where is the remaining water?
Definition
2/3 is stored in glaciers, ice caps, permafrost or underground. So, only 1/3 is available to us.
Term
What is the amount of "adequate water" that is needed per person per day?
Definition
13 gallons
Term
How many gallons of water do US and Canadian Citizens vs. UK use?
Definition
150 vs. 20% less than
Term
When and how many people did the UN estimate that there will be a fresh water shortage?
Definition

year 2025 and 2.8 billion people in 48 countries

 

Term
Why are there a different number of nutrient distribution in biomes from different parts of the world?
Definition
Different environmental conditions change biological processes which regulate nutrient distribution.
Term
What are the three ecosystems that have different distributions of nitrogen in their soils? Include where most of the soil is found within the components of being above-ground, soil or roots.
Definition

tundra- soil

tropical forests and savannas: vegetation

temperate-zone: about equal distribution

Term
Where is most of the carbon found in the tropical forest in Venezuela and in New Hampshire?
Definition

Venezuela's tropical forest has the most carbon in wood

 

New Hampshire has the most carbon the forest floor organic debris

Term
What is the result os the Hubbard Brook Study?
Definition
Biogeochemical cycles are very conservative in a natural ecosytem. The input and output are relatively equal. Disturbances of natural conservation, such as clearing of forests, will disrupt the natural conservation.
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