What is "Biodiversity" ? What is its importance ?

Explanation

1) Biodiversity is the variety of living things that populate the earth.
2) The products and benefits we get from nature relay on biodiversity.
3) We need a rich mixture of living things to provide foods and building materials, as well as to maintain a clean and healthy landscape.
4) We need to protect biodiversity to ensure we have plentyful and varied food sources.
5) Biodiversity is important for more than just food. For instance, we use between 50,000 to 70,000 plant species for medicines world wide.