Home / study / science / earth sciences / earth sciences questions and answers / 1. for each of the following volcanic landforms, identify the principle volcanic setting (divergent question: 1. for each of the following volcanic landforms, identify the principle volcanic setting ( (2 bookmarks) 1. for each of the following volcanic landforms, identify the principle volcanic setting (divergent boundary, convergent boundary, or hot spot) it is associated with a. kilauea b. mt. st. helens c. eyjafjallajökull d. yellowstone e. fujiyama (mt. fuji) f. mt. mazama (crater lake) g. deccan plateau h. east pacific rise 2. why does this basaltic lava have a glassy appearance? a. the basalt is still molten. b. all the minerals in basalt have a glassy luster. c. the outer surface of the lava cooled very slowly. d. the outer surface of the lava cooled very quickly. e. all basaltic lavas have a glassy appearance. 3. arrange these lavas in order of their original viscosity. (highest viscosity, high viscosity, low viscosity, lowest viscosity.) 5. what kind of phenomenon is seen here? lahar pahoehoe flow aa flow pyroclastic flow obsidian flow 6. what type of lava is seen here? rhyolite basalt (pahoehoe) basalt (aa) andesite komatiite

Select the correct text in the passage. the moving continents affect all subsystems on earth. which sentence identifies a potentially negative consequence of shifting continents? the supercontinent pangaea began to break up about 175 million years ago. [during this process, more coastline was exposed as the landmasses separated]. [the rearrangement and displacement of these huge landmasses resulted in the diversity of plants and animals we see on earth today]. [the movement of the plates sometimes leads to earthquakes and tsunamis]. however, over the long course of earth's history, their effects are usually minimal. in oceans, the plate movements usually lead to seafloor spreading. [seafloor spreading often results in the formation of underwater ranges of mountains].

All of the following came out of china and were exchanged along the silk road, except a. papermaking b. block printing c. buddhism d. compasses select the best answer from the choices provided a b c d

Scientist: cross-sections of stalactites—calcite formations deposited on cave ceilings by seeping water—can reveal annual variations in rainfall in particular areas over hundreds and thousands of years. we often found that when—according to these cross-sections—drought occurred in a particular area, it coincided with the collapse of an ancient society in that area. i hypothesize that drought reduced agricultural productivity in these areas, thereby leaving these societies without the resources needed to handle internal stresses and external threats. which of the following, if true, would most weaken the support for the scientist's hypothesis? a. many droughts indicated in the cross-sections of stalactites do not correspond with the collapse of a society in that area. b. information from the cross-sections of stalactites alone cannot reveal the level of agricultural output in an area at a particular time. c. most of the societies that collapsed during droughts did so when internal power struggles coincided with military raids from neighboring societies. d. most of the societies that collapsed during droughts maintained large stockpiles of food and water at the time of their collapse. e. information from stalactites also suggests that the collapse of some societies coincided with periods of abnormally high rainfall.