Egyptian pyramids are made of rocks formed from

Egyption pyramids are made of rocks formed from

Population pyramids were first made by :

The four inner planets are made of rocks and have metallic cores.

The four planets in the outer system are made of rock and metal.

Ecological pyramids are of I. three types (age pyramids, energy pyramids and biomass pyramids). II. four types (age pyramids, energy pyramids, number pyramids and biomass pyramids). III. five types ((age pyramids, energy pyramids, number pyramids, tropical pyramids and biomass pyramids). Select the statements with the correct option.

Ecological pyramids are of I. three types (age pyramids, energy pyramids and biomass pyramids). II. four types (age pyramids, energy pyramids, number pyramids and biomass pyramids). III. five types ((age pyramids, energy pyramids, number pyramids, tropical pyramids and biomass pyramids). Select the statements with the correct option.

Right pyramid a pyramid is said to right pyramid if the perpendicular dropped from the vertex on the base meets the base at its central point.

Sound travels in rocks in the form of :