What is the main reason why soil erosion can be a problem for people?
O
A. People use soil to block the wind.
O
B. People need soil to build houses.
O
C. People use soil to stop weathering.
O
D. People need soil to grow plants.

? you expect us to answer this? ? this is your schoolwork, i don't think we can with this, i think it would considering being

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.