|
|
6
|
made from accumulation of sediments
|
8
|
forms in a cooling environments
|
10
|
formed by heat of magma
|
13
|
made from shells and skelotens
|
14
|
made from plant debris
|
15
|
can be used for gas and oil
|
|
|
|
|
1
|
it is formed by calcium carbonate
|
2
|
made from trapped gas
|
3
|
underlines most of earths surface
|
4
|
changed by heat and preasure
|
5
|
it's used to make stonetools
|
7
|
made up of minerals
|
9
|
it's made of material from volcanoes
|
11
|
made from silicon dioxide
|
12
|
formed by molten rock material
|
|
|