The greenhouse effect in the atmosphere is produced due to: 1.Absorption and re-emission of infrared radiation by the atmosphere 2.Absorption and re-emission of ultraviolet radiation by the atmosphere 3.Absorption and re-emission of visible light by the atmosphere 4.Absorption and re-emission of visible light by clouds
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The greenhouse effect in the atmosphere is produced due to:
1.Absorption and re-emission of infrared radiation by the atmosphere
2.Absorption and re-emission of ultraviolet radiation by the atmosphere
3.Absorption and re-emission of visible light by the atmosphere
4.Absorption and re-emission of visible light by clouds
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- Of the solar radiation that Passes through the atmosphere only about 10% reaches the earths surface. True or false?-2 of incoming solar radiation. Of this, 79 watts m -2 is reflected by clouds Earth receives 341 watts m -2 before it reach the surface. An additional 23 watts m is reflected by the Earth's surface. Nearly 78 -2 watts m is absorbed by the atmosphere. The remaining energy is absorbed by the Earth's surface. -2 How many watts m are absorbed by the Earth's surface? AOutline three characteristics of exosphere.
- 1. Which of the following is true about atmospheric pressure? * 1 point A)None B) Atmospheric pressure decreases in a regular way as one progresses from lower to higher altitudes C) Atmospheric pressure increases in a regular way at higher altitudes D) Atmospheric pressure increases when one progresses from troposphere to stratosphere 2. The largest gaseous component of the atmosphere is A) nitrogen B)carbon dioxide C)water vapor D)oxygen 3. Ozone is A) none B) filters harmful UV-radiation in the stratosphere C) desirable in the troposphere D) an undesirable pollutant in the stratosphere. 4.Which of the following characteristics of the atmosphere is crucial in protecting life on earth? A) Production of O2 by plants B) Reducing temperature extremes between day and night. C) Acid-base neutralization reactions taking place in the troposphere 5. Existence of O3 in the troposphere Harmful UV-radiation is blocked by ozone layer in the A) stratosphere B) thermosphere C)…1. describe key aspects of the atmosphere related to human well-being, such as oxygen's role as a limiting factor, the greenhouse effect, and the tropospheric ozone layer. 2. identify types of stationary and mobile anthropogenic air pollutants 3. Describe the hydrologic cycle in specific terms, especially related to sources of fresh drinking water. Also, provide examples of point and nonpoint sources if pollution 4. characterize the physical-chemical properties of environmental contaminants related to their behavior in the environment 5. assess the advantage and disadvantages of toxicology compared with epidemiology as sources of information about the human health effects of environmental chemicals 6. describe the assumptions associated with estimating absorbed and biological effective doses. 7. explain why risk assessors use a reference dose to quantify noncarcinogenic toxicity but use a cancer slope factor to qualify carcinogenic toxicity 8. identify characteristics that influence…3) dissolved oxygen 4) hydrogen sulfide 5) coliform bacteria 17. An environmental science student observed a sound meter recording of 100 decibels when a train entered the station? What conclusion can be drawn from this observation? 12. Which factor is a major cause of global warming? 1) increased number of green plants 2) decrease in atmospheric CO. 3) increased burning of fuels d) increase in photosynthesis 1) This sound volume meets health standards. 2)This sound level would not be damaging to the ears. 3)This volume of sound constitutes noise pollution. 4)This sound level is not considered an example of noise pollution. 13. The effluent coming from a typical sewage treatment plant is 1) free of all pollutants 2) low in pathogens 3) high in sludge 4) high is fecal wastes Base your answers to questions 18 to 20 on the following chemical reaction CO: + H;0 - H,CO, + HCO, + H* co + 2H 18. This chemical reaction can produce 1) a small number of hydrogen ions 2) a large number of…
- In stratosphere, which elements acts as a catalyst in degradation of ozone and release of molecular oxygen?11) The chart below compares the greenhouse gas emissions of several fuel sources. Greenhouse Gas Emissions of Fuel and Energy Sources Sugarcane Ethanol Cellulosic Ethanol Fuel > Gasoline Corn Ethanol Energy > Source Fossil Fuels Biomass Biomass Biomass Source: Adapted from http://energy.itgoverns.com An accurate prediction that could be made regarding the information shown in the chart is that A) fossil fuels emit the least amount of greenhouse gases the use of biomass-based fuels instead of fossil fuels will greatly decrease the production of greenhouse gases B) C) the use of any one of the ethanol sources for fuel will each produce more greenhouse gases than the use of gasoline for fuel D) a total change from gasoline to ethanol as a fuel would have no effect on greenhouse gas emissions Greenhouse Gas Emissions1) explain why the troposphere's boundary is gradually being pushed upward.
- Which of the following is true of greenhouse gases in our atmosphere? Group of answer choices A. They include carbon dioxide, methane, and water vapor. B. They are responsible for the majority of back radiation to the Earth’s surface. C. Without these gases, the Earth’s surface would be considerably cooler (by more than 30OC). D. A and B E. A, B, and CThe current concentration of CO2 in the atmosphere is about 415 ppmv. It has been estimated that annual anthropogenic additions to the atmosphere are about 30 gigatonnes (Gt), of which about 15 Gt are removed into oceans and the terrestrial environment. a) Use these values to estimate the yearly net increase in atmospheric carbon dioxide mixing ratio, in ppmv. (note that 1 Gt = 1015g)You may not be familiar with all the gases shown above: • O2: Oxygen gas makes up about 20% of the earth's atmosphere. • N2: Nitrogen gas makes up about 78% of earth's atmosphere • CO2: carbon dioxide gas makes up about 0.04% of earth's atmosphere, but levels are increasing due to fossil fuel combustion. • TFE: tetrafluoroethane is a human-made gas used in air conditioning. Levels in the atmosphere are low (about 10 parts per trillion or 0.000000001%), but increasing Which gases cause the greatest warming? Use evidence from your observations to support your statement.