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Comment on : Forests preceded mankind, deserts follow.'

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Answered by surya20589
4
Thought to be up to 100 million years old and home to more species than any other ecosystem on Earth, the Amazon rainforest is a magical place, but your average soft-bellied city dweller of industrial civilization would last no more than a week there, likely succumbing to yellow fever, malaria, flesh-eating parasites, venomous snakes, and an endless array of creepy-crawlies. Nearly one-third of the planet’s biodiversity is found in the Amazon, including ancient indigenous tribes, hundreds of animal species, 16,000 tree species, 2.5 million species of insects, and new discoveries happening all the time. With a treasure trove of medicinal plants, many of which have yet to be discovered, the Amazon is known to many as the world’s largest pharmacy. 70% of all drugs introduced in the U.S. in the last few decades were derived from nature, and 70% of plants identified as containing anti-cancer characteristics are found only in tropical rainforests.

The Amazon discharges one-quarter of the Earth’s freshwater and plays a critical role in the Earth’s carbon cycle and climate, absorbing 1.5 billion tons of carbon every year through photosynthesis. Additionally, the Amazon’s 400 billion trees are responsible for producing 20% of the Earth’s oxygen and generating the region’s heavy rains needed to irrigate crops, fill reservoirs, and generate hydropower. A single large rainforest tree is the equivalent of a standing lake releasing up to 317 quarts (300 liters) of water each day through evapotranspiration (evaporation and plant transpiration). The importance of the Amazon rainforest in regulating not only South America’s climate but also that of the entire world cannot be overestimated. Like the Earth’s cryosphere, the Amazon and other rainforests are essential geographic features of the planet that help regulate the climate and provide habitat for unique wildlife. As with the melting polar regions, the loss of the Amazon to capitalist “resource development” will prove to be a self-destructive act for all of mankind.

Answered by Anonymous
2

No animal on the planet earth ever caused damage to it but humans have been causing serious destruction upon the earth ever since he had evolved. By cutting down trees for his survival and development humans have established their monopoly over the other species. Thus, with the coming of humans, the existence of forest was threatened.

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