blackbody radiator 510 radiative balance 513 sea-level rise 526 solar radiation
ID: 117719 • Letter: B
Question
blackbody radiator 510 radiative balance 513 sea-level rise 526 solar radiation management 527 stratosphere 509 sunspots 514 terrestrial radiation 510 thermal expansion 524 troposphere 509 weather 508 carbon capture and sequestration 528 carbon management 528 climate 508 feedback 514 forcings 513 geoengineering 527 global warming potential 515 greenhouse gases 512 Testing Your Knowledge 1. What is the difference between weather and climate? 2. What is albedo? Give an example of an object with (a) high albedo and (b) low albedo. 3. In what way do greenhouse gases warm the planet? 4. How do volcanoes affect the Earth's temperature? 5. Describe three pieces of evidence that climate is changing. 6. What are the two main causes of sea-level rise? 7. How do scientists use ice cores to determine past temperatures? 8. Why doesn't increasing CO, lead to increased plant growth in the long term? 9. What are the two approaches to geoengineering? 10. What is a climate feedback? Give an example of a negative feedback. 11. Which of the following is the correct order of the layers of the atmosphere from the ground up? a. stratosphere, mesosphere, troposphere, thermosphere b. thermosphere, troposphere, stratosphere, mesosphere c. troposphere, stratosphere, mesosphere, thermosphere d, stratosphere, troposphere, mesos phere, thermosphereExplanation / Answer
1.The difference between weather and climate is the measure of time, mentioning about the shorter period conditions of the atmosphere is said to be weather, for example, a day atmospheric conditions like the weather was cool today,
Now coming to the climate it is mentioned to describe the longer periods of the atmospheric conditions when the scientist and professors reporters speak about the climate they will say the average readings over the certain long period of time
2.The proportion of solar radiation which is reflected by a non-luminous body is known as albedo.It is the measure of the reflective nature of an object.This dimensionless number provides important clues about celestial objects and can even be used as an indicator of global warming
An example of a high albedo material is snow and ice.because they hang around for long period after they fallen and also they are white as so they have reflective quality
An example of a low albedo material is dirt. Dirt are generally in dark colour and they are non-reflective
3) The greenhouse gases do not emit warm temperatures but they have a tendency to keep up the temperature of trapping the temperature by not letting escape into the atmosphere, they have the capacity of that not letting the heat as it tries to escape from Earth into space.This happens because the vibrational frequency of the greenhouse gas molecules corresponds with the wavelengths of thermal radiation, this allows for the absorption and subsequent retransmission of the heat energy; it’s this process that we call the greenhouse effect.
4) Volcanos produce larger amount of carbon dioxide into the atmosphere which is a greenhouse gas, The carbon dioxide in the upper atmosphere prevents the heat to escape from the atmosphere into space and so the temperature is heated in the atmosphere around the volcanic area, In the other condition the volcano also emits other gases like sulphur dioxide gets thrown high into the stratosphere along with dirt particles. The sulfur dioxide gets converted to sulfate particles which then reflect sunlight back into space this has the temporary effect of cooling the area the net effect will be only around 1 degree Fahrenheit, if the dust cloud formed by the volcano is large than the cooling area will be larger because the sunlight cannot able to reach the area
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