At Times in the Geologic Past,five Climate Changes Have Resulted

question 69

Essay

At times in the geologic past,five climate changes have resulted in extinction of large numbers of species at approximately the same time.These incidents are known as _______ extinctions.

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Definitions:

Reagents

Chemicals or ingredients introduced into a system to initiate a chemical reaction or to check for the presence of a reaction.

NMR Spectrum

A graphical representation of the nuclear magnetic resonance of atoms within molecules, providing information on the structure, dynamics, reaction state, and chemical environment of the molecule.

Splitting

A process or reaction where a larger molecule is divided into two or more smaller entities, often used in reference to nuclear fission or chemical decomposition.

NMR Spectrum

A technique used in chemistry to determine the structure of molecules by measuring the interaction of nuclear spins when placed in a magnetic field.