Your question isn't the most clear, but I think your answer is rocks, or more specifically phosphorous rich rocks because the phosphorous will mix with the sediments on the river's/lake's ground forming phosphorous rich rocks.
That means that It'll become a phosphate mineral and later become phosphorous again when the minerals weather.
Hope it helped,
BioTeacher101
The nurse should ensure that the absorption of the child
into his body would be reduced. The nurse should also increase the elimination
or excretion of the toxic being taken by the child and he should provide the
supportive care.
The immune system is the bodies defense against invaders and is located in all body tissues with concentration in the mucosal surfaces and skin.
I think it the answer could be a "steamy mixture of carbon dioxide and water vapor".