Which of the following is not a cause for loss of biodiversity?

Biodiversity includes all the flora and fauna on earth. All the varieties of organisms come under biodiversity.

Decline in number, genetic variability and variety of species in a give area is deemed as loss of biodiversity. It can be due to many factors like destruction of habitat, over use of resources, invasion by non-indigenous species and also, anthropogenic activities.

Zoological parks, sanctuary, afforestation are a means of conserving biodiversity.