DNA is negatively charged, therefore, when an electric current is applied to the gel, DNA will migrate towards the positively charged electrode.
The mantle is very hot. Thickness is 2885km.
Scientific laws or laws of science are statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena. ... Scientific laws summarize the results of experiments or observations, usually within a certain range of application.
Because decomposition helps create nitrogen, a lack of decomposition would result in a lack of nitrogen being created.