Pyramid of Biomass

Q. A pyramid of biomass for a terrestrial and aquatic ecosystem is and
, respectively.

1. up-right
2. spindle-shaped
3. inverted
4. flat

Q.

Which pyramid of biomass is inverted?

Q.

Choose the odd one out of the following terms given and name the category to which others belong:
Sewage, newspaper, Styrofoam, Hay.