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Tunza for Youth - United Nations Environment Programme

Biodiversity          

Key Facts          Challenges        Make A Difference     

What is biodiversity?

Biodiversity means the rich variety of life forms in nature. Countless plants, mammals, insects, birds, fish and reptiles contribute to the diversity and the beauty of our planet. All animals and plants are important, because each species forms part of nature's biological life-cycle on which all life depends. Most of the Earth is covered by water and the bottom of the sea contains millions of species, most of which have not yet been identified.

For millions of years, plants and animals have evolved and developed into what they are now today. They have survived all these years without the threat of extinction. Unfortunately, many of them are now endangered because of human activities.

Why biodiversity is important:

All beings form part of an ecosystem and play an important role in maintaining life on Earth. For example, Eagles depend on Mice, Frogs and other small animals for survival and once these become extinct the eagles will also die.

Apart from being the most important source of food for humans and animals alike, plants are used as medicine by more than 60% of the world's population.

Many plants are also of value to industries, where they are used to make dyes, oils, etc.

 
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