is a felbsic igncous rock with a meringe-like vesicular texture created y alf 24
ID: 114772 • Letter: I
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is a felbsic igncous rock with a meringe-like vesicular texture created y alf 24) snull shards cd 24)-- volcanic glass. A) Granite B) Scoria Obsidian D) Pumice 25) Along which tectonic boundary will chains of composite cone volcanoes be located A) Divergent boundary C) Mantle plumes B) Translorm boundary D) Convergent boundary 26) Which mineral resource is the main component for plaster and drywall 26) A) Gypsum B) Diamonds C) Talc D) Calcite 27) Which of the following textures would be the most common texture found in a volcanic lava flow? 27 A) Pegmatitic B) Phaneritic C) Porphyritic D) Aphanitic 28) is defined as a mineral's resistance to scratching 28) A) Streak B) Hardness C) Fracture D) Cleavage 29) 29) What provides us with the most information about the interior of the Earth? A) Satellite imagery C) Seismic energy waves B) Erupted materials D) Borehole data 30) 30) Which of the following textures would be the most common texture found in a batholith? A) Phaneritic B) Pyroclastic C) Porphyritic D) Aphanitic 31) 31) What percentage of the Earth is covered by oceans? A)50% B)17% C) 71% D) 80% 32) 32) is a material's resistance to flowing B) Quiescent C) Volatiles D) Composition A) Viscosity 33) 33) Which of the three most abundant elements in the universe has the highest percentage? A) Iron B) Helium C) Lithium D) Hydrogen 4) Which mineral on the Bowen's Reaction Series will be the first to melt if an igneous rock is heated?4) A) Pyroxene C) Quartz B) Olivine D) Potassium Feldspar 35) 35) Which of the following organisms is defined as a primitive organism that reproduces asexually and lacks an organized nucleus? A) Eukaryote B) Brachiopod C) Prokaryote D) Bryozoan E) All of the above 36) What kind of viscosity would flood basalts have? High viscosity A) Low viscosity B)Medium viscosityExplanation / Answer
24)pumice
Pumice is a light-colored, extremely porous igneous rock that forms during explosive volcanic eruptions. It is used as aggregate in lightweight concrete, as landscaping aggregate, and as an abrasive in a variety of industrial and consumer products. Many specimens have a high enough porosity that they can float on water until they slowly become waterlogged.
25)Convergent boundary
A tectonic boundary where two plates are moving toward each other. If the two plates are of equal density, they usually push up against each other, forming a mountain chain. If they are of unequal density, one plate usually sinks beneath the other in a subduction zone. The western coast ofSouth America and the Himalayan Mountains are convergent plate boundaries.
26)Gypsum
Gypsum is an evaporite mineral most commonly found in layered sedimentary deposits in association with halite, anhydrite, sulfur, calcite, and dolomite. Gypsum (CaSO4.2H2O) is very similar to Anhydrite (CaSO4). The chemical difference is that gypsum contains two glasses of water and anhydrite is without water. Gypsum is the most common sulfate mineral.
28)Hardness
29)seismic energy waves
Seismic waves are the waves of energy caused by the sudden breaking of rock within the earth or an explosion. They are the energy that travels through the earth and is recorded on seismographs.
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