Mark the most appropriate answer from the given alternatives.
Which of these is an example of biodiversity?
(i) Different species of plants in a forest
(ii) Variety of rocks and minerals in a mountain
(iii) Many types of animals living in a grassland
(iv) Different soil layers in the ground
(i) Different species of plants in a forest
(ii) Variety of rocks and minerals in a mountain
(iii) Many types of animals living in a grassland
(iv) Different soil layers in the ground