Five significance of genetic engineer​

Rank the three variables in terms of how strongly they affect the "species" composition of the bacterial communities. place the variable with the weakest effect on the left and the variable with the strongest effect on the right.

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

Which equation is used to calculate the magnetic force on a charge moving in a magnetic field