the controlled release of nuclear energy in a reactor is accomplished by:

a)allowing the critical mass of fuel to react
b)controlling a chain reaction
c)controlling fission without a chain reaction
d)all of the above

I believe the answer is C

Explanation:

C) controlling fission without a chain reaction

Explanation:

Because

If a chain reaction occurs, then the amount of energy would increase exponentially, so in order to monitor the release of energy, fission must be controlled without controlling a chain reaction.  

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both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .