Geography

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Alluvial fans form best in humid climates. Indicate whether the statement is true or ... Started by Yi-Chen	3 Replies 97 Views	Jul 13, 2018 by qytan
Natural glass such as obsidian forms when ____. A)magma cools too rapidly for crystals to form ... Started by rlane42	1 Replies 204 Views	Jul 13, 2018 by Smiles0805
All known Proterozoic animals were soft-bodied. Indicate whether the statement is true or ... Started by leo leo	1 Replies 106 Views	Jul 13, 2018 by okolip
Wind gaps are created when superposed streams eroded downward into resistant rocks to create a ... Started by stock	1 Replies 81 Views	Jul 13, 2018 by DHRUVSHAH
One example of a vesicular felsic rock is ____. A)pumice B)basalt C)obsidian D)granite ... Started by geodog55	1 Replies 105 Views	Jul 13, 2018 by TDubDCFL
Time divisions in the Precambrian are based on ____. A)distinct fossil assemblages B)metamorphic ... Started by @Brianna17	1 Replies 63 Views	Jul 13, 2018 by snackralk
The majority of most states' mineral revenues comes from sand and gravel. Indicate whether the ... Started by PhilipSeeMore	1 Replies 65 Views	Jul 13, 2018 by l.stuut
Most plutons form ____. A)well within plates B)from extruded lava C)from batholiths D)above the land ... Started by bio_gurl	1 Replies 61 Views	Jul 13, 2018 by Sammyo
Earth differentiated during the ____. A)Hadean B)Archean C)Paleoproterozoic D)Mesoproterozoic ... Started by renzo156	3 Replies 76 Views	Jul 13, 2018 by Sophiapenny
The maximum rate at which materials absorb water is called ____________________ and depends on the ... Started by Yi-Chen	1 Replies 38 Views	Jul 13, 2018 by laurnthompson
A laccolith forms when a sill ____ and causes the overlying rocks to ____. A)ruptures underground; ... Started by genevieve1028	1 Replies 68 Views	Jul 13, 2018 by akudia
During the Archean, how long was the length of a day on Earth? A)36 hours B)10 hours C)The same as ... Started by shenderson6	1 Replies 89 Views	Jul 13, 2018 by jesse.fleming
Former meanders that have been cut off from the stream are called ____________________. Fill in the ... Started by tatyanajohnson	1 Replies 75 Views	Jul 13, 2018 by l.stuut
Stoping is the process in which ____. A)pyroclastic flows are tranformed into obsidian B)rising ... Started by jayhills49	1 Replies 107 Views	Jul 13, 2018 by Heffejeff
Shield areas of continents are found in modern ____. A)subduction zones B)continent-continent plate ... Started by corkyiscool3328	1 Replies 239 Views	Jul 13, 2018 by Ashley I
The types of marine deltas that are recognized, based on the relative importance of the processes ... Started by fahad	1 Replies 77 Views	Jul 13, 2018 by Koolkid240
The two main categories of igneous rocks are ____________________ and ____________________. Fill in ... Started by crobinson2013	3 Replies 76 Views	Jul 13, 2018 by Silverbeard98
The oldest well-documented stromatolites occur in the ____. A)Hadean B)Archean C)Paleoproterozoic ... Started by Charlie	1 Replies 63 Views	Jul 13, 2018 by memslove
The total surface region that provides runoff to a stream system is known as a(n) ... Started by kamilo84	1 Replies 41 Views	Jul 13, 2018 by polinasid
The increase in Earth's temperature with depth is called the ____________________. Fill in the ... Started by nenivikky	1 Replies 65 Views	Jul 13, 2018 by raili21
The large Proterozoic landmass known as Laurentia was composed of ____. A)Europe, Asia, Scandinavia, ... Started by Lobcity	1 Replies 89 Views	Jul 13, 2018 by voltaire123
An uplifted erosional remnant of a floodplain that formed when a stream was flowing at a higher ... Started by SAVANNAHHOOPER23	1 Replies 81 Views	Jul 13, 2018 by polinasid
Rapid cooling of magma results in a fine-grained ____________________ texture. Slow cooling of magma ... Started by Cooldude101	1 Replies 104 Views	Jul 13, 2018 by LVPMS
Besides iron, banded iron formations contain A)quartz B)calcite C)magnetite D)chert ... Started by naturalchemist	1 Replies 147 Views	Jul 13, 2018 by durant1234
Why does the velocity of a stream generally increase downstream even though the gradient ... Started by tingc95	3 Replies 117 Views	Jul 13, 2018 by dominiqueenicolee