Science questions 1) carbon dioxide 2) Living organisms like plants‚ animals and decomposertake oxygen from the atmosphere and utiliseit for respiration. 3) Nitrogen fixation 4) Biosphere is the regions of surface atmosphere occupied by living organisms sustainsble ecosystem ecosystem is one that can survive and thrive without humans having to continually add or take out of the ecosystem. 5) When animals breathe they produce carbon dioxide and you get it when you eat a plant. 6) We use carbin
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is to move fresh air into and get waste gases out of the body. Lungs are very important because Oxygen‚ a basic gas‚ is needed by every cell in your body in order to live. The air that comes into the body through the lungs contains oxygen and other gases. In the lungs‚ the oxygen is moved into the bloodstream and carried through the body. At each cell in the body‚ the oxygen cells are exchanged for waste gas called carbon dioxide. The bloodstream then carries this waste gas back to the
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water becomes oxygen depleted. There are natural cycles of eutrophication in the spring and fall‚ but the body of water can deal with those amounts. When excess waste is added to the water the body of water can no longer control the growth of the algae and the water soon becomes algae ridden and oxygen depleted. The water becomes oxygen depleted because the dead algae goes to the bottom and uses the oxygen in the deeper water to decompose‚ but if there is too much dead algae all the oxygen is depleted
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high oxygen MAP is identified as a potential technology that addresses key shortcomings in traditional modified atmosphere packaging. What are Minimally Processed Fruits and Vegetables? Minimally processed fruit and vegetables can be classified as those fruit and vegetables which have been trimmed‚ peeled or cut into ready to use (RTU) products‚ can be pre-packaged‚ and offer consumers nutrition‚ convenience and
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planet. Most of our atmosphere is located close to the earth’s surface where it is most dense. The air of our planet is 78% nitrogen and just under 21% oxygen; the small amount remaining is composed of carbon dioxide and other gasses.It is a mixture of gases encircling the Earth and held by the Earth’s gravity. This invisible mixture of nitrogen‚ oxygen‚ argon‚ carbon dioxide‚ and water vapor protects the planet from harmful radiation and makes life on it. (Atienza et al.‚ 2012) Atmosphere and Ecology
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amount of salinity in the water affect gross primary productivity? Hypothesis: The higher the salinity content in the water the lower the gross primary productivity values. Variables: Control- The group with zero salt added. Dependent- Dissolved oxygen reading. Independent- The salt concentration in the water. Introduction: On the surface waters of lakes and oceans‚ plants are mainly unicellular algae‚ and most consumers are microscopic crustaceans and protozoans. Both the producers and consumers
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as a straight line. The straight line is due to the limiting factors of light intensity (Carbon dioxide and concentration of Chlorophyll). Glucose + Oxygen (+ light) Carbon dioxide + Water Safety Don’t place hands on bulb- damage to skin may occur. Variables Independent: distance of light bulb Dependant: Amount of oxygen bubbles‚ distance of bulb away from pondweed and the amount of water. Control: amount of water Method Place some Elodea in a boiling tube. Place
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note the volume of oxygen in the measuring cylinder in a suitable table of results. * Empty and rinse the conical flask and measure another 20 cm3 pureed potato into it. Reassemble the apparatus‚ refill the measuring cylinder‚ and repeat from d to g with another concentration of hydrogen peroxide. Use a 100 cm3 measuring cylinder for concentrations of hydrogen peroxide over 20 vol. * Calculate the rate of oxygen production in cm3/ s. * Plot a graph of rate of oxygen production against
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Ozone As A Disinfectant Joey Finnegan Section 01 October 3‚ 2010 Ozone is a highly reactive gas composed of three oxygen atoms. Ozone is an unstable gas that can destroy bacteria and viruses. Ozone can have many different effects on humans depending on where it is in the atmosphere‚. Some of these effects can be harmful although some can be good. An excess‚ or high concentration of ozone in an inclosed area can be quite harmful to humans although in moderation and if used properly ozone
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conversion of light energy to chemical energy took place in the chloroplast. In 1881‚ he observed the movement of bacteria towards the chloroplasts in a strand of “Spirogyra” algae. Engelmann hypothesized that the bacteria were moving in response to oxygen generated by the photo synthetically active chloroplasts in the algae. This was one of the first documented observations of positive aero taxis in bacteria. In 1882‚ he performed his famous action spectrum experiment using a device designed and built
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