The coal, oil, and natural gas that drive the industrial world's economy all contain carbon inhaled by plants hundreds of millions of years ago-carbon that now is returning to the…

Text 3  Ecotourism is defined as 'purposeful travel that creates an understanding of cultural and natural history, while safeguarding the integrity of the ecosystem and producing economic benefits that encourage…

Text 1  Infections with Ebola virus are acute. There is not carrier state. Because the natural reservoir of the virus is unknown, the manner in which the virus first appears…

Infections with Ebola virus are acute. There is not carrier state. Because the natural reservoir of the virus is unknown, the manner in which the virus first appears in a…

Text 7  Using a simple membrane extract from spinach leaves, researchers from the Technion- Israel Institute of Technology have developed bio-photo-electro-chemical (BPEC) cell that produces electricity and hydrogen from water…

Using a simple membrane extract from spinach leaves, researchers from the Technion- Israel Institute of Technology have developed bio-photo-electro-chemical (BPEC) cell that produces electricity and hydrogen from water using sunlight.…

Text 6  A study showed that a single artisanal coral reef fishery can produce over 30,000 meals per year. Its annual economic value is more than $78,000. Ocean and coastal…

Teks 5  The coal, oil, and natural gas that drive the industrial world's economy all contain carbon inhaled by plants hundreds of millions of years ago-carbon that now is returning…

Text 6  A study showed that a single artisanal coral reef fishery can produce over 30,000 meals per year. Its annual economic value is more than $78,000. Ocean and coastal…

Text 6  A study showed that a single artisanal coral reef fishery can produce over 30,000 meals per year. Its annual economic value is more than $78,000. Ocean and coastal…