What are some of the opportunities and challenges to life on
land? What were some of...
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Biology
What are some of the opportunities and challenges to life onland? What were some of the first colonizers? How did this processoccur?
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Answer Human life depends on the earth as much as the ocean for our sustenance and livelihoods Plant life provides 80 percent of the human diet and we rely on agriculture as an important economic resources Forests cover 30 percent of the Earths surface provide vital habitats for millions of species and important sources for clean air and water as well as being crucial for combating climate change Every year 13 million hectares of forests are lost while the persistent degradation of dry lands has led to the desertification of 36 billion hectares disproportionately affecting poor communities Forests cover nearly 31 per cent of our planets land area From the air we breathe to the water we drink to the food we eatforests sustain us Think about it Around 16 billion people depend on forests for their livelihood Almost 75 per cent of the worlds poor are affected directly by land degradation And of the 8300 animal breeds known 8 per cent are extinct and 22 per cent are at risk of extinction Biodiversity and the ecosystem services it underpins can also the basis for climate change adaptation and disaster risk reduction strategies as they can deliver benefits that will increase the
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