Question

Which best describes why humus in soil reduces the removal of

potassium through leaching.

A Humus has many negative
charges and is able to bind to
positively charged potassium

B Humus has many positive charges
and is able to bind to negatively
charged potassium

C Atoms split by lightning release
potassium to the soil where it can
bind with humus

D Humus cannot be removed im
the soil by water

Answer 1

A) Humus has many negative charges and is able to bind to positively charged potassium.

The correct answer is A. Humus, which is a dark, organic component of soil, has a high concentration of negatively charged particles. Potassium, on the other hand, carries a positive charge. Due to these opposite charges, humus is able to bind to and retain potassium in the soil, preventing it from being washed away through leaching. This helps to ensure that the potassium remains available for plant uptake and utilization, promoting healthy plant growth and reducing the loss of this essential nutrient.