Erupting volcanoes eject pyroclastic materials of varying diameters. These materials, from smallest to largest are ____________________, ____________________, ____________________, and ____________________
Fill in the blank(s) with correct word
ash, lapilli, bombs, blocksash, lapilli, blocks, bombs
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On this map of South America, which features are NOT on a plate boundary?
A. B and C B. A and B C. C and D D. D and E E. All of the features are on a plate boundary.
Heavy precipitation in the humid tropical climates is due to ____
a. warm, humid air and unstable conditions along the ITCZ b. convectional uplift c. cool polar air along the ITCZ d. low pressure cells along the ITCZ
At which of the following temperatures does the Earth radiate energy at the greatest rate or intensity?
A. -40°C B. 32°C C. 60°C D. 105°C
What is the source of high carbon dioxide levels at middle depths in the ocean?
a. The decay of the remains of organisms b. It diffuses from the atmosphere c. Chemical reactions d. Plant respiration