Mula sa larawan, bumuo ng limang magkakaugnay na pangungusap

Which of the following elements does soil need in the largest quantities to sustain plant life? a. copper b. iron c. nitrogen d. zinc

Which is not a likely outcome after extensive irrigation of dry farmland? useless, unproductive soil salinization of the soil depletion of groundwater nutrient-rich soil

All of these things can block a bronchus and cause collapse of a lung except