ILE pre lab 2 latest 2022 already passed

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ILE pre lab 2 latest 2022 already passed All ozone harms biological systems.✔✔F The ozone layer creates favorable conditions on the surface of our planet for life.✔✔T Where does most of the ... ground-level ozone come from?✔✔Human activities What is the role of volatile organic compounds (VOCs) in ozone formation?✔✔VOCs are not involved in ozone formation, rather they breakdown ozone. THIS IS WRONG Rural and uninhabited regions are not affected by ozone and ozone precursors produced in urban areas.✔✔F Where do ozone precursors come from?✔✔Motor vehicle exhaust Industrial emissions Chemical solvents Gasoline vapors Combustion from coal-fired electricity plants Using figure 6, which state had the most counties that exceeded the 8-hour ambient air quality standard?✔✔California In figure 5, according to the data, when were ozone levels at their lowest?✔✔6 am Which of the following is NOT a characteristic of stippling?✔✔Dot like areas of tan, red, brown, purple, or black pigmentation THIS IS WRONG Why do older leaves on a plant exhibit more ozone injury than younger leaves?✔✔Older leaves have been exposed to higher concentrations of ozone for longer periods of time than younger leaves. Two different species or varieties of a plant will respond to ozone in the same way and have the same ozone injury pattern.✔✔F If a plant's stomata are closed can ozone enter the plant?✔✔No How a plant responds to ozone and the extent of its ozone injury is dependent upon✔✔A combination of the innate sensitivity of the plant, the environment, and the concentration and duration of ozone exposure Which of the following are ozone injury patterns exhibited by plants?✔✔Stipple foliar injury Fleck foliar injury No visible symptoms other than a reduction of growth Bifacial necrosis foliar injury Imagine that you have two identical plants and everything is the same except one plant is growing in wet conditions and the other is growing in dry conditions. Which plant would sustain more ozone injury?✔✔There is not enough information to answer this question OR Both plants would be equally affected by ozone. BOTH OF THESE ARE WRONG The effects of ozone are limited only to the organism that was exposed to and affected by ozone.✔✔F Which of the following is NOT a characteristic of an ozone bioindicator plant?✔✔It is insensitive to ozone Based on the data collected in the 2006-2010 Rocky Mountain study, scientists could conclude that the injury observed on the Rocky Mountain cutleaf coneflower plants was caused by ozone.✔✔False If you wanted to determine if the foliar injury pattern on a plant was caused by ozone, which of the following could you do?✔✔Grow the plant under controlled conditions, like in an ozone exposure chamber, and monitor for the effects of ozone exposure (i.e. the appearance of the foliar injury pattern). If you observe stippling on a plant, then it may or may not have been caused by ozone.✔✔True Ozone naturally occurs as a✔✔Gas Where is the ozone layer?✔✔In the stratosphere Which of the following is NOT a property of ground-level ozone?✔✔It is considered a threat to world food, fiber, and timber production. THIS IS WRONG What is the role of nitrogen oxides (e.g. nitrogen dioxide) in ozone formation?✔✔Nitrogen oxides are not involved in ozone formation, rather they breakdown ozone. THIS IS WRONG Why do ground-level ozone levels vary throughout the day?✔✔Sunlight levels and ozone precursor emissions vary throughout the day Ozone and ozone precursors stay where they are produced.✔✔F In a typical year (see figure 7), monthly ozone concentrations are highest during✔✔June through August Plants are not affected by ozone.✔✔F What does ozone biomonitoring tell you?✔✔The effects of ozone and the presence of plant injuring ozone concentrations [Show More]

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