Answer: maybe a creature that can fly and swim
Explanation:
Whenever the Moon, Earth and Sun are aligned, the gravitational pull of the sun adds to that of the moon causing maximum tides. Spring tides happen when the sun and moon are on the same side of the earth (New Moon) or when the sun and moon are on opposite sides of the earth (Full Moon)
Hope this helped
It could collapse. Just like Hawaii islands. That sink about 2.8 inches every 3 months
First turn 18% to a decimal, which is .18, then multiply it by 450.
450 x .18 = 81