Which of the following describes nuclear fusion? (2 points) it fuels nuclear power plants. it involves splitting of the nucleus. it involves the combining of nuclei. its chain reactions can be initiated by neutrons.

It involves the combining of nuclei.

Explanation:

The two common nuclear reactions are

a) Nuclear fission : which involves breaking of a larger nucleus by sub atomic particles which generate some more sub atomic particles and the reaction continues as chain reaction.

The fission also results in formation of smaller daughter nuclei.

Nuclear power plants work on this reaction.

b) Nuclear fusion is combining of two nuclei to give one bigger nucleus.

This this involves combining of nuclei.

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)