Consider the incomplete equation below

Superscript 4 subscript 2 upper H e plus superscript 4 subscript 2 upper H e right arrow question mark.

If this equation was completed, which statement would it best support?
Nuclear fusion produces elements that are heavier than helium.
Nuclear fusion produces elements that are lighter than helium.
Nuclear fission produces elements that are heavier than helium.
Nuclear fission produces elements that are lighter than helium.

Nuclear fusion produces elements that are heavier than helium.

Explanation:

Nuclear fusion is a nuclear reaction in which two lighter nuclei combine to give a heavier nuclei releasing tremendous amount of energy in the process.

When two nuclei fuse, a heavier nucleus is formed. This is a kind of nucleosynthesis, the synthesis of new nuclei.

Hence fusion of two helium nuclei will produce elements heavier than helium. Hence the answer.

measuring things 1 litre of water

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.