Humans in the food chain
Part One: Explain the terms
What is meant by the following terms? Define them in short but clear sentences.
Food chain
Food web
Ecosystem
Producer
Consumer
.
Part Two: Your position in the food chain
Where do you place yourself in a food chain or food web in your ecosystem? Are you a producer, primary, secondary or tertiary consumer? Explain your ideas in a paragraph.
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Note: Plagiarism is strictly prohibited please do not copy from internet
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The formation of this type of drainage pattern is dependent on the variable discharge and high sediment load of the river (as we discussed last week). The volume of water flowing down a glacier river changes from morning to night, and from season to season, and this change effects the amount of sediment the river can carry. Why does the discharge of the river change so dramatically over such short time scales?
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a. Eye b. Eye Wall c. Spiral Bands
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A suspension of calcium carbonate particles in water flows through a pipe. An engineer was asked to determine both the flow rate and the composition of this slurry. The engineer proceeded to collect the stream in a graduated cylinder for a time given in the table below. The engineer weighed the cylinder, evaporate the collected water, and reweighed the cylinder. The following results are obtained based on two occasion
Item |
Sample 1 |
Sample 2 |
Time to collect |
1 min |
1 min |
Mass of cylinder |
65.0 g |
65.5 g |
Mass of cylinder and collected slurry |
565 g |
595.5 g |
Volume collected |
455 mL |
450 mL |
Mass of cylinder after evaporation |
215 g |
251 g |
create Matlab programming to calculate:
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Balance the following redox equation in basic solution. What is the coefficient of the water? NO 2-(aq) + Al(s) → NH 3(g) + AlO 2-(aq)
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A pure species (decadane) has an equation of state: ??/?? = 1-?′? + ?′? 2 . Here, B’ and C’ are functions of temperature only and their values are: 1.2 x 10-7 Pa-1 and 3.2 x 10-14 Pa-2 respectively at 300 K. Calculate decadane’s fugacity and fugacity coefficient at 25 bar and 300 K. (20 points). What kind of intermolecular interactions exist at these conditions? Explain
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Describe the surface and deep ocean circulation of Panthalassa. Consider radiative imbalance, Coriolis, and the way the placement of continents on the current earth impact atmospheric and oceanic circulation.
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Water at a mean velocity of 0.2 m/s is heated from 20
to 40°C by passing it through a 0.5-cm-ID tube. The 2
surface is heated with a uniform heat flux of 6000 W/m . Find the
following: a) The length required to heat the water to a given
temperature.,b) the surface temperature at the inlet of the tube.
Given that the following information: The physical properties of
liquid at 30 °C:
??
=4182?⁄??.°?,?=0.6405?⁄?.°?,??=3.57,?=0.5537×10−6?2⁄?,?=988??⁄?3
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Give a detailed explanation to the following question.
Compare and contrast two types of herbicides commonly used in agriculture in terms of mode of action, application, selectivity, characteristics in soils and degradation pathways.
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Identify two economic uses for Galveston Bay and the features of the bay that support that economic activity.
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Environmental Engineering: Please answer the following question with details and clear hand writing.
Mention three main mitigation strategies for reducing fossil-fuel carbon dioxide emissions from a reference scenario to a stabilization path. Give an example for each strategy.
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Urea pellets are made by spraying drops of molten urea into cold gas at the top of a tall tower and allowing the material to solidify as it falls. Pellets 6 mm in diameter are to be made in a tower 25 m high containing air at 20 °C. The density of urea is 1330 kg/m3 . a. What would be the terminal velocity of the pellets, assuming free-settling conditions? 2 b. Would the pel1ets attain 99 percent of this velocity before they reached the bottom of the tower?
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How can central banks assist with reducing the risks related to climate change?
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Do research on flex-fuel vehicles ,because you will participate here in a debate about these types of vehicles. You will have to take a position in favor or against their use. You will be assigned a position in favor or against. In order to prepare for your stance, you have to be sure you know the answer to these questions that can guide you on your research. You must include a list of references (minimun 5) used for your research, What is a flex-fuel car and how is it different from a regular vehicle? What are the environment pros and cons to using flex-fuel vehicles? What is E-85 and how might it help the US become more energy independent? Would using more corn for ethanol result in a net environmental benefit?
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Doing a geology project and I have picked 2 locations. I need examples of bothe phisical and chemical wethering that happens at the locations Mt Everest and Death Valley. I am told Frost Wedging occurs at Everest and Root Wedging occurs at Death Valley and theres lots of chemical weathering at both locations. I need specfic examples of these things at each location from observations I would see if I were at each location
Examples of Frost Wedging at Mt Evererest and Root Wedging at Death Valley/ Phisical Weathering at Death Valley
Examples of Chemical Weathering at Mt Everest and and Death Valley Oxidation/ dissoulution/ hydrolisis
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