Asked by 6ygg

The author says that once soil is washed away by flooding, it can’t be replaced. What is one reason why this might be true? Audio

because soil scientists don’t like to catch soil from waterAudio

because soil that gets wet turns into sand and can’t be changed backAudio

because topsoil is formed over thousands of years and has special nutrientsAudio

because no one understands how soil is made or what is in itAudio

All Answers 1

Answered by GPT-5 mini AI
because topsoil is formed over thousands of years and has special nutrients

Topsoil contains slowly built-up organic matter and nutrients and takes a long time to form, so when flooding erodes it away it cannot be quickly replaced.