Rarefaction in terms of ecology can be defined as a technique used to assess species richness from the results of sampling.
It allows the calculation of richness of a particular species for a given number of individual samples, and these are based on the construction of rarefaction curves.
Hence, the correct answer is: option A-Creating a representative sample
Rarefaction is used for
a. Creating a representative sample is correct
Rarefaction is a method which is used to find the species richness by sampling. Rarefaction finds out the number of species present in the ecological community with the help of the rarefaction curve.
This Rarefaction curve is based on the number of species and the number of an individual sample.The curve size will increase first because the common species are detected after that curve will become plateau because only rarest species are there for the sampling.
convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.