What can the nitrogen cycle not exist without?

How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential to lower potential? a.the kinetic energy increases.b.the kinetic energy decreases.c.the kinetic energy remains the same.d.the kinetic energy is always zero.

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

Estimate of the number of stars in our galaxy