Final answer:
The environmentally responsible water consumption technique is watering your garden between 10pm and 10am.
Step-by-step explanation:
The environmentally responsible water consumption technique among the options provided is watering your garden between 10pm and 10am. This technique is more efficient because it allows the water to be absorbed by the plants and soil, reducing evaporation during the hotter parts of the day. It also helps to prevent water waste.