Clastic sedimentary rocks are classified based on:
a) Color
b) Type of bedding
c) Mineral composition
d) Chemical composition
e) Size and shape of sediment grains
Answer: e) Size and shape of sediment grains
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Radar images of which planet show a surface that is young and still volcanically active?
A. Neptune B. Mercury C. Saturn D. Mars E. Venus
Glaciation can take about ________ years, whereas deglaciation requires about ________ years
A) 10,000; 90,000 B) 1000; 100 C) 100; 1000 D) 100,000; 10,000
?Tsunamis are often called "tidal waves", but they have nothing to do with tides.
Answer the following statement true (T) or false (F)
When a particular solid sample is examined under a microscope it is observed that there are regions which are black and regions which are yellow. What type of material is this sample?
A) a compound B) an element C) a homogeneous mixture D) a heterogeneous mixture