Think why are the pyramids always upright?

Which pyramid is always upright ? Why?

Think why do you eat ?

Why is the electric field always at right angles to the equipotential surface ? Explain.

An age pyramid illustrates

Pyramids are found in

"The pyramids of biomass of terrestrial ecosystem are always upright" said Jyothsna. Do you agree with this statement or not? Give reasons.

The volume of a pyramid is

Think why testis are located outside the abdominal cavity?

Pyramid of numbers is

Which of the following ecological pyramids can be both upright and inverted?