Explanation:

The UN has proclaimed 22 May the International Day for Biological Diversity to increase understanding and awareness of biodiversity issues. The theme of the 2019 edition will be 'Our Biodiversity, Our Food, Our Health'. Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play. For example, A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms.