Australias famous Uluru (Ayers Rock) is what type of rock?
a. igneous rock
b. asthenospheric rock
c. sedimentary rock
d. mantle lid rock
e. metamorphic rock
Q. 2 -
What would be the method of choice for dating an organic substance less than 100,000 years old?
a. uranium-238
b. potassium-40
c. rubidum-87
d. carbon-14
e. europium-123
Q. 3 -
Judge the following sentence according to the criteria given below: Accretionary terrains are much less
likely to develop around the margins of the Atlantic Ocean than the Pacific BECAUSE the Pacific
Ocean is much larger in area than the Atlantic.
a. The assertion and reason are both correct, and the reason is valid.
b. The assertion and reason are both correct, and the reason is invalid.
c. The assertion is correct and the reason is incorrect.
d. The assertion is incorrect and the reason is correct.
e. Both the assertion and the reason are incorrect
Q. 4 -
What is a common distinguishing characteristic of sedimentary rock masses?
a. They tend to be extremely hard.
b. They are always very colorful.
c. They are formed by solidification from a melt.
d. They tend to be layered.
e. all of the choices
Q. 5 -
Granite is a type of:
a. volcanic rock.
b. metamorphic rock.
c. intrusive igneous rock.
d. extrusive igneous rock.
e. sedimentary roc
Q. 6 -
What is the name of an aphanitic rock consisting of 50 pyroxene, 20 plagioclase feldspar, 20
olivine and 10 hornblende?
a. Andesite
b. Basalt
c. Gabbro
d. Diorite
e. Granite
Q. 7 -
Which property of minerals is variable and therefore the least reliable as a clue in identifying a mineral
type?
a. color
b. cleavage
c. hardness
d. crystal form
e. luster
Quick Reply
