Because water helps them grow.. when you poue water on a flower is suks the water in and then it goes underground and the soils suk it in and grow 10 cm every day you water them
I believe the answer is "It is unsafe and can result in someone getting hurt."
Hope this helped !!
The word sponge is more appropriate to use than Underground river since an underground river can loose water while an aquifer cannot loose water, unless it is open-air and above ground. then the aquifer would slowly loose water due to evaporation from the sun.
Blood plasma transports nutrients, waste (like uric acid, creatinine, and ammonium salts), albumin (protein), and electrolytes.