Streams in mountainous areas normally have floodplains. Indicate whether the statement is true or false
F
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The Sahel
A) is just north of the Sahara Desert. B) was under the control of the Soviet Union. C) has precipitation that is under the influence of the ITCZ. D) increased in size substantially in the 1980s. E) all of the above
Water vapor
A) does not absorb shortwave radiation. B) does not absorb longwave radiation. C) both absorbs and emits longwave radiation. D) emits longwave radiation, but does not absorb it. E) does not contribute to the greenhouse effect.
European rabbits were introduced into Australia and quickly spread, reproduced, and became a terrible pest. They eat up to $600 million worth of food and pasture crops annually, and have damaged the populations of many native plants and the populations of animals that eat the plants. Twice in the past 50 years, rabbit diseases have been introduced to try to control the population, with some success. This is a case where ________.
A) an invasive species has caused overharvesting B) climate change has decreased the genetic diversity of indigenous species C) an extirpation has occurred D) an invasive species has reduced the genetic diversity of indigenous species E) habitat alteration resulted in decreased biodiversity
The volcanic islands visible here formed as a result of a mantle plume. Which volcanic island is the oldest and subsiding into the sea?
A) Volcano A B) Volcano B C) Volcano C