Which is an example of a dryland farming technique? (1 point)

Question

watering crops in areas with little rainfall by irrigating with water pumped from aquifers
growing crops, such as corn, that require relatively little water
using a harrow to break up clumps of earth and destroy weeds
watering crops in areas with little rainfall by using irrigation systems connected to rivers

Answer 1

watering crops in areas with little rainfall by using irrigation systems connected to rivers