Explain how calderas form
What will be an ideal response?
Removal of magma from shallow magma chambers causes caldera formation when the unsupported roof of the magma chamber collapses.
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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 a primary link between photosynthesis and aerobic respiration?
A. phosphorus B. sulfur C. hydrogen D. carbon E. nitrogen
Global warming would likely lead to tropical diseases spreading farther north and south
Indicate whether the statement is true or false
Besides deserts, sand dunes are also commonly found in what environment?
a. karst regions b. glacial regions c. tropical rainforest regions d. permafrost regions e. coastal regions