Answer:
The main reasons are the following:
1. protect species still not described
2. discover new sources of biodiversity
Explanation:
Biodiversity can be defined as the variety of species in a given area/ecosystem. The loss of biodiversity due to the extinction of species or decline in the genetic diversity of the wild populations may potentially lead to a breakdown of the functioning of a given ecosystem. Therefore, the discovery of species still not described is fundamental in order to protect them and thus ensure the correct functioning of each ecosystem. Moreover, and since new species also represent new sources of biodiversity, they can potentially contain beneficial unknown compounds that can be used to develop new medicines for treating diseases and injuries.
Participating in extreme sports can help your cardiovascular system work properly and better because extreme sports usually are very taxing in terms of being an aerobic sport which also puts a lot of burden on the aerobic system. Another benefit would be not so health-related but more personal; doing extreme sports and being close to death - which can hppen - makes one more appreciative and aware of life and death.
The answer is D-Strong Feelings.
