UV rays, gamma rays, and x rays
Hope this help
Consequently, the ion with the greatest nuclear charge (Al 3 +) is the smallest, and the ion with the smallest nuclear charge (N 3−) is the largest. The neon atom in this isoelectronic series is not listed in Table 2.8.3, because neon forms no covalent or ionic compounds and hence its radius is difficult to measure.
Answer:
The top ocean layer tends to be the warmest layer due to heating from the sun.
Bonus+ : This is also the reason why oceans and sea's don't freeze(well except in the poles, no sun warmth avaliable there)