A sediment composed of large boulders and cobbles might be found _____.
A. a great distance from the source.
B. in a sand dune.
C. in an alluvial fan.
Answer: C. in an alluvial fan.
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In areas where climate makes growing wet rice difficult, the major grain is
A) corn. B) oats. C) wheat. D) sorghum.
Which is not a way that volcanoes can drastically change environments?
A) Volcanoes emit poisonous gases, potentially killing organisms within the environment. B) Volcanoes release heatwaves, making environments too hot for organisms to live. C) Lava flows from volcanoes, burning organisms and creating new rock. D) Volcanoes can trigger earthquakes , potentially causing ground breaks and altering the landscape.
The blizzards and subzero, bone-chilling cold over Eastern Europe and Russia in February 2012 have
been attributed to a. an increase in the ice at the north pole. b. a cooling of Earth’s climate. c. a negative arctic oscillation. d. warmer conditions over Antarctica. e. less atmospheric moisture being available
What is El Nino?
a. a warm desert wind. b. a disruption of the ocean and atmospheric conditions in and around the equatorial Pacific ocean. c. a land-breeze circulation in South America. d. a subtropical jet stream on the Southern Hemisphere.