Which will have a greater impact on global temperatures: volcanic ash or volcanic gases? Why?
What will be an ideal response?
Answer: Volcanic gases. They stay in the atmosphere for longer. Also, they can bond with dust and water to make aerosols and reflect incoming solar radiation.
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Summer temperatures are high in arid climates because
A) high sun angle and low relative humidity. B) high sun angle and high relative humidity. C) evening cloud cover prevents the loss of heat. D) most desert locations are closer to the sun in the summer.
When an ENSO event occurs, warm equatorial waters flow ____ in the equatorial Pacific
A) ?east B) ?west C) ?north D) ?south
Which one of the following forms of radiation has the longest wavelength?
ultraviolet blue light radio waves infrared
India and the United Kingdom have approximately the same arithmetic density although their landscapes and sizes are quite different. From this we can conclude that the two countries have roughly the same
A) level of output per farmer. B) number of people per area of land. C) pressure placed by people on the land to produce food. D) number of farmers per area of land. E) number of people per area of arable land.