Subject :NSO Class : Class 5
Deep inside the Earth there is hot molten rock called
'P'. This comes up and collects in a chamber. When
'P' erupts through the Earth's surface, it is called 'Q'.
On cooling, it becomes 'R'. The hollow top of the
volcano that is shaped like a bowl, is called a 'S'.
Which of the following is incorrect regarding the
above passage?
A 'Q' is magma and 'P' is lava. When magma is below
the Earth's surface it is called lava.
B 'R' are igneous rocks. The first rocks to form on
the Earth were igneous rocks.
C 'S' is a vent, an opening or a crack in the crust of
the Earth.
D Both A and C.