Crown fires tend to be more beneficial in ponderosa pine forests because they stay close to the ground, burn relatively cool, and clean up forest debris to give the trees a quick burst of nutrients?

answer:

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.

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.