Terrestrial biodiversity is up to 25 times greater than ocean biodiversity. Although a recent discovered method put the total number of species on Earth at 8.7 million of which 2.1 million were estimated to live in the ocean, however this estimate seems to under-represent diversity of microorganisms.
Debenture Bonds. A debenture bond represents money a company has borrowed from the general public, who become creditors of the company. When issuing bonds, a company promises to repay the principal amount it borrows on an agreed-to date, and at a particular rate of interest paid at specified intervals.ebenture Bonds. A debenture bond represents money a company has borrowed from the general public, who become creditors of the company. When issuing bonds, a company promises to repay the principal amount it borrows on an agreed-to date, and at a particular rate of interest paid at specified intervals.
Hydrogen bonds (covered here) are often thought of as fairly weak, but they are solid iron-and-concrete compared to van der Waals forces. Like hydrogen bonds van der Waals rely on dipoles, a difference in charge between two molecules. But unlike hydrogen bonds the van der Waals dipole is not permanent, but transient. A permanent dipole accross a bond between oxygen and hydrogen.