Number the elements sodium , magnesium, and potassium in the predicted order from the largest to the smallest

The image shows a process that releases nuclear energy which statement best identifies the process shown the process must be fusion because energy is released the process must be fusion because of have your nucleus formed a smaller nuclei the process must be fission because a large nucleus breaks into smaller nuclei the process must be fission because neutrons are formed

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

What can be found in the ionosphere