Monday, July 13, 2015

FRESH WATER ECOSYSTEMS LAB



Part A
Around 40 JTU

Dissolved Oxygen (4ppm)

Nitrate (5ppm)

pH (7)

phosphate (2ppm)

Coliform (Neg)

Coliform (Pos)

Temp (26 degrees)


Dissolved Oxygen - 49 - (poor)
Nitrate - 5ppm - (fair)
phosphate - 2ppm - (good)
pH - 7 - (excellent)
turbidity - 40 JTU - (good)
Temp - 3.3 - (good)

The poor results that I had in my field-testing were found in the dissolved oxygen levels. If the water had poor oxygen levels are found in the water then it cannot support large animal life. This was the only poor results that I got from this water; all the other results were ok.


The excellent readings that I got from the water samples were from the ph levels. When ph levels are to high younger fish and other animals can’t live within that water so ph levels must be normal or close to it.

Part B 

The article that I read was about the total renewable fresh water supply. The reason I choose to read about the total renewable water supply is because you here a lot about how the earth is running out of fresh water and it’s not that I don’t believe all the talk about that I am just wondering how much each country has and at what rate it is being depleted.  I wonder if there is any part of the data that shows that we are running out of fresh water is fabricated in anyway.
            It seems that of all the countries South America has the most renewable water on the planet as a whole. I wonder if the amount of renewable fresh water in South America because of the amount of rain forests there. Russia has a new amount of fresh water as well probably because of the amount of ice there. The US had a relative good amount of fresh water as well. I’m not saying that this data would suggest that the idea that fresh water depletion should be a serious concern but I’m not seeing data that would cause me to have concerns unless I’m reading the data incorrectly.

Sunday, July 5, 2015

Part 1 A Qualitative vs. Quantitative, Dimensional Analysis, and Growth


Qualitative # 1 

The petals on this rose are yellow and the leaves are green. Both the petals and the leaves of this rose bush have water on them because it has recently been watered.

Quantitative # 1 

The petal on the rose is 1.5 inches long.
The petal on the rose is 1.2 inches wide.
Qualitative # 2


The leaves on this grape vine are green and the bark of the vine is brown.



 Quantitative # 2

The leaf on the grape vine is 4.5 inches wide.

The leaf on the grape vine is 4.7 inches long. 


Part B.     Dimensional Analysis

Step 1 - Convert pounds to grams
Step 2 - 1 pound = 453.592 grams
Step 3/4 - 4 pounds = 1814.37 grams so a 4 pound fish would weight 1814.37 grams.


Part c.      Linear vs. Exponential Growth





a.     The earning strategy where you get paid with a 25% increase each day is more profitable.

b.     The earning strategy of a $6 a day raise seemed most profitable if you had stopped at six days.