Question

If you added 100 mL of water to a soil, and 55mL of water drained from the soil, what is the % water retention of this soil?

Answer 1

Answer:

45 %

Explanation:

Mass of water added to the soil = 100 mL

Mass of water drained from the soil = 55 mL

Mass of water remained in the soil = Mass of water added to the soil - Mass of water drained from the soil = 100 mL - 55 mL = 45 mL

Thus, percentage water retention can be calculated as:-

$\%=\frac{Water\ remained\ in\ soil}{Total\ water\ added}\times 100$

So, applying the values in the above expression as:-

$\%=\frac{45\ mL}{100\ mL}\times 100= 45\ \%$