(B1) Rocks 27/7/22

Mechanically formed rocks are called _______ rocks

• stratifed
• siliceous
• All the above

the first phase of decomposition of vegetal matter is _____

• peat
• coal
• None of the above

igneous rocks are called ______ rocks

• primary
• secondary
• True

4) Rocks are used in construction industries

• True
• False
• Both

5) Riverine rocks are fromed by alluvial deposition of river

• True
• False
• Same