GK
GENERAL SCIENCE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
fracture
|
|
|
cleavage
|
|
|
clast
|
|
|
cementation
|
Detailed explanation-1: -A clast is a fragment of rock or mineral, ranging in size from less than a micron (too small to see) to as big as an apartment block. Various types of clasts are shown in Figure 5.12 and in Exercise 5.3.
Detailed explanation-2: -These types of sedimentary rocks are called “clastic rocks. “ Clastic rocks are rock fragments that are compacted and cemented together.
Detailed explanation-3: -Sedimentary rocks are made from sediments, which are small fragments of rocks torn from preexisting hard rocks and transported into seas ancient and modern. Sedimentary rocks also grow where minerals form from water through chemical precipitation.
Detailed explanation-4: -Sediment can consist of rocks and minerals, as well as the remains of plants and animals. It can be as small as a grain of sand or as large as a boulder. Sediment moves from one place to another through the process of erosion.