Answer:
3.biodiversity
Step-by-step explanation:
Biodiversity can be regarded as biological variety as well as variability of life on the Earth. It can be explained as term that gives measurement of variation, as regards to level of species,
ecosystem as well as genetic. Example of biodiversity can be found in ocean whereby different varieties as well as different types of animals and plants live in a particular ocean. It should be noted that biodiversity is defined as the diversity of forms of life in an area and within a species; not equivalent to the number of species.