Final answer:
Approximately 40 percent of Earth's ice-free land mass is used for agricultural production. Agriculture is also a major consumer of freshwater.
Step-by-step explanation:
Around 40 percent of Earth's ice-free land mass is used for agricultural production (Barnard). The location of agricultural land has shifted over time, with temperate regions losing land to other uses while tropical regions have expanded agricultural land by clearing forests.
Agriculture is also a major consumer of freshwater, accounting for about 70 percent of global freshwater use (Barnard).