How is the nitrogen cycle similar to the carbon cycle? They are both used by plants, as either CO 2 or N 2, to create oxygen.
Both elements can be used to create larger molecules but cannot be broken down again.
Both are ”fixed” by eukaryotes
Elements are removed from the atmosphere and then used by organisms to create larger molecules necessary for life.

That big glowy thing in the sky is called the sun

1. electricity2. discharge: )

The figure is missing but we can answer anyway.the correct answer is "releasing the string". in fact, when the person is holding the bow and the arrow, the kinetic energy of the arrow is still zero (because the arrow is not moving). the moment the arrow is released, it acquires a velocity v, so its kinetic energy will become different from zero: where m is the mass of the arrow and v its velocity.  all the other options, instead, do not increase the kinetic energy of the system: -  pulling farther back on the string : this will just increase the elastic potential energy of the system-  holding the arrow higher: this will increase the gravitational potential energy of the system (which is given by u=mgh, where h is the height above the ground)-  decreasing the mass of the arrow: this will decrease the gravitational potential energy of the system (which is given by u=mgh, where m is the mass)