Environmental Studies

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Columnar joints caused by the contraction of lava as it cools form typically in a(n) ... Started by mpobi80	3 Replies 61 Views	Jul 15, 2018 by akemokai
Pyroclastic material that is less than 2 mm in diameter is called ____________________. Particles ... Started by acc299	1 Replies 41 Views	Jul 15, 2018 by momolu
Lavas of ____________________ composition are more likely to produce lava domes. Fill in the ... Started by Lisaclaire	1 Replies 119 Views	Jul 15, 2018 by shaquita
Cinder cones rarely reach heights greater than ____________________; they are composed of ... Started by ETearle	1 Replies 47 Views	Jul 15, 2018 by lkanara2
Composite volcanoes are composed of the igneous rock type known as ____________________, which ... Started by melly21297	1 Replies 65 Views	Jul 15, 2018 by Mholman93
Sometimes, the pyroclastic material that flows from a volcano is so hot that it fuses together to ... Started by Evvie72	1 Replies 73 Views	Jul 15, 2018 by momtoalll
The two most active volcanic zones are the ____________________ belt and the ____________________ ... Started by mp14	1 Replies 81 Views	Jul 15, 2018 by lkanara2
The one place on Earth where mid-oceanic ridge volcanism occurs above sea level is ... Started by charchew	1 Replies 80 Views	Jul 15, 2018 by Galvarado142
Volcanic activity that takes place away from plate boundaries is the result of volcanism at a(n) ... Started by Mr3Hunna	3 Replies 103 Views	Jul 15, 2018 by Swizqar
An extinct volcano is one that:a. existed during a past geological period or epoch. b. has not ... Started by EY67	1 Replies 128 Views	Jul 15, 2018 by phuda
Lava domes form from:a. mafic magma. b. intermediate magma. c. viscous magma. d. pyroclastic ... Started by fagboi	1 Replies 191 Views	Jul 15, 2018 by Juro
he three main types of volcanoes are:a. cinder cones, clastic cones, and stratocones. b. cinder ... Started by SAVANNAHHOOPER23	1 Replies 106 Views	Jul 15, 2018 by mcinincha279
An example of a caldera is: a. Mount St. Helens, Washington. b. Paricutn, Mexico. c. El Chichon, ... Started by charchew	1 Replies 77 Views	Jul 15, 2018 by Ahernandez18
An example of a cinder cone volcano is: a. Mount St. Helens, Washington. b. Mayon, Philippines. ... Started by arivle123	1 Replies 221 Views	Jul 15, 2018 by tofugiraffe
Most volcanoes are located in: a. the Mediterranean belt. b. the mid-oceanic ridges. c. the ... Started by cagreen833	1 Replies 67 Views	Jul 15, 2018 by leeeep
Intermediate and felsic magmas usually arise where:a. mafic magma mixes with felsic material. b. ... Started by jayhills49	1 Replies 114 Views	Jul 15, 2018 by Mochi
Most of the approximately 3,300 historic eruptions lasted:a. less than one month. b. one to six ... Started by Shelles	3 Replies 62 Views	Jul 15, 2018 by lcapri7
Volcanism profoundly affects the atmosphere, hydrosphere, and biosphere. Indicate whether the ... Started by berenicecastro	1 Replies 114 Views	Jul 15, 2018 by qytan
An ash fall occurs when volcanic ash is ejected into the atmosphere and settles to the surface. ... Started by TVarnum	1 Replies 91 Views	Jul 15, 2018 by recede
An eruption of a viscous, felsic magma is likely to form a lahar. Indicate whether the statement is ... Started by imowrer	1 Replies 73 Views	Jul 15, 2018 by nicoleclaire22
Pyroclastic sheet deposits are thin lava flows that often exhibit columnar jointing. Indicate ... Started by sarasara	1 Replies 70 Views	Jul 15, 2018 by jasonq
Explosive eruptions take place in a few hours and then are over until gases can build up again, ... Started by james9437	1 Replies 64 Views	Jul 15, 2018 by mtmmmmmk
A volcanic tremor indicates that magma is moving beneath the surface and an eruption is likely to be ... Started by magmichele12	1 Replies 77 Views	Jul 15, 2018 by choc0chan
Why are minerals important economically? What effect does the distribution of minerals have on the ... Started by HCHenry	1 Replies 85 Views	Jul 15, 2018 by sylvia
How do a rock and a mineral differ? What will be an ideal response?[br][br][b][color=green]Question ... Started by fasfsadfdsfa	3 Replies 83 Views	Jul 15, 2018 by iceage