epub |eng | 2019-12-19 | Author:Frank R. Spellman

So Necessary, but So Easy to Abuse If water is so precious, so necessary for sustaining life, then two questions arise: (1) Why do we ignore water? (2) Why do ...

epub |eng | 2008-06-19 | Author:David A. Perry & Ram Oren & Stephen C. Hart [Perry, David A. & Oren, Ram & Hart, Stephen C.]

1. Nutrients contained in dust and gases that are present on leaf surfaces are soluble and become part of the throughfall. A heterogeneous mixture of gases and aerosols are either ...

epub |eng | 2010-03-01 | Author:Alanna Mitchell [Mitchell, Alanna]

On day five only four corals spawn. No eggs are fertilised. Everyone is exhausted. Day six and from the second Knowlton gets into the water, she knows that tonight is ...

epub |eng | 2018-05-07 | Author:Carina Hoorn & Allison Perrigo & Alexandre Antonelli

16 The Interplay between Geological History and Ecology in Mountains Catherine H. Graham1,2, Mauricio Parra3, Andrés Mora4 and Camilo Higuera4 1 Stony Brook University, Stony Brook, NY, USA 2 Swiss ...

epub, azw3 |eng | 1978-12-31 | Author:David Attenborough

So feathers did not evolve initially for flight and do not define birds. The birds inherited them from feathered ancestors. And this leads to the realisation that all dinosaurs were ...

epub |eng | 2019-05-02 | Author:Paul B. Wignall

The first extinctions For the first few billion years of Earth history, during the Precambrian Eon, evolution was on the microbial, single-celled level. This changed around 540 million years ago ...

epub, pdf |eng | 2018-05-15 | Author:David Turner

ECOLOGICAL MODERNIZATION THEORY Ecological modernization (EM) is a process by which societies address environmental change issues. Ecological modernization theory (EMT) is a theory of social change, i.e., an effort to ...

azw3 |eng | 2008-02-01 | Author:Vaclav Smil

OFFSHORE DRILLING In 1949 John Hayward combined a submersible barge and a piled platform to build the first submersible rig, Breton Rig 20; he devised a way to stabilize a ...