Why are so few volcanoes mapped in the middle of the oceans?
A) The middle of the oceans corresponds with the middle of tectonic plates, so there are only hot-spot volcanoes there.
B) Geologists cannot pinpoint the locations of many recently active seafloor volcanoes.
C) There are only convergent plate boundaries under the ocean, which are less likely to have volcanoes than transform or divergent boundaries.
D) There are only divergent plate boundaries under the ocean, which are less likely to have volcanoes than transform or convergent boundaries.
Answer: B
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What is artesian water?
a. water that has been removed from the cone of depression b. water from a karst terrain rich in dissolved calcium c. water that has been pumped from a perched aquifer d. water under pressure from a tilted confined-aquifer e. expensive bottled water from Artois, France
The luster of quartz is classified as:
a. pearly b. adamantine c. silky d. vitreous
Read carefully through the following sentence, and decide which of the options is correct. Erosion and deposition of sediment redistribute mass and change the densities of columns of crust
A) The word "sediment" should be replaced by "magma." B) The word "crust" should be replaced by "mantle." C) The word " mass" should be replaced by "temperature." D) The word "densities" should be replaced by " thickness."
An artesian well, by definition, requires pumping because there is otherwise not enough pressure to bring the water to the surface
Indicate whether the statement is true or false