Quiz on Farming Without Soil

What is the primary benefit of farming without soil?

• Ability to grow plants anywhere

• Dependence on soil quality

• Increased use of pesticides

• Higher water consumption

In hydroponics, how are plants fed?

• By nutrients dissolved in water

• Through soil nutrients

• With organic compost

• Using chemical fertilizers

What is a key feature of aeroponics?

• Plants are grown in soil

• Roots are misted with nutrient solution

• Plants are submerged in water

• Nutrients are delivered through drip systems

Which hydroponic system uses wicks to draw nutrients?

• Flood tank system

• Drip system

• Wick system

• Nutrient film technique

What does the nutrient film technique involve?

• Nutrients are absorbed through wicks

• Nutrients are dripped onto plants

• Nutrient solution flows over roots in a tray

• Plants are misted with nutrient solution

In aquaponics, what is the role of fish waste?

• It is discarded after use

• It is used as a pesticide

• It provides nutrients for the plants

• It contaminates the water

How much water does a hydroponic farm use compared to a conventional farm?

• Twice as much

• Equal amounts

• 10 percent less

• 50 percent more

What is a potential future application of hydroponics mentioned in the text?

• Growing crops in traditional fields

• Farming exclusively in rural areas

• Vertical farming in skyscrapers

• Using only natural sunlight

What is the purpose of the air pump in a hydroponic system?

• To deliver nutrients

• To add dissolved oxygen to water

• To control humidity

• To regulate temperature

What is the main advantage of using a drip system in hydroponics?

• It uses more water

• It allows for nutrient recycling

• It is the simplest method

• It requires less space