Coal is an example of a(n) _______________ sedimentary rock
Fill in the blank(s) with correct word
organic
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Identify each of the substances in the following chemical reactions as acting as an "acid" or a "base."PH3 + H2S ? PH4+ + HS-
What will be an ideal response?
Which of the following is true about transport of sediment in a stream?
A) Pebbles and cobbles are mostly transported by suspension. B) Sediment that is deposited within a stream bed is unlikely to be transported again. C) Sand can be transported in a series of bounces along the stream bed. D) Slower current can carry larger clasts because the water is in contact with each clast for a longer time. E) Sand grains are converted into salt by the process of saltation.
The Maunder minimum during the Little Ice Age has been linked to
A) volcanic activity and multiyear changes in global circulation. B) changes in Earth's axial tilt (obliquity). C) changes in Earth's orbital shape (eccentricity). D) a period of low sunspot activity from 1645 to 1715. E) a cooling of the Gulf Stream from rapid glacial melt in Greenland.
There are two basic types of shorelines in terms of plate tectonics: leading edge (active) and trailing edge (passive). Which of the following best describes leading edge shorelines?
A. gentle slopes, straight coastline, broad beaches B. steep slopes, straight coastline, restricted beaches C. steep slopes, irregular coastline, restricted beaches D. steep slopes, irregular coastline, broad beaches E. gentle slopes, irregular coastline, broad beaches