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Hydroponics POST-ASSESSMENT

Quiz by Emily Beveroth

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27 questions
Show answers
  • Q1
    What is hydroponics?
    Growing plants in a liquid nutrient solution with or without artificial media
    Growing plants in water only
    Growing plants in soil
    Growing plants in sand
    30s
  • Q2
    Which of the following is NOT a commonly used medium in hydroponics?
    Topsoil
    Expanded clay
    Perlite
    Coir
    30s
  • Q3
    Who first used the term 'hydroponics' and when?
    U.S. Army in World War II
    Dr. Gericke in 1929
    Greek philosophers in ancient times
    Commercial farms in the 1950s
    30s
  • Q4
    Which is NOT listed as an advantage of hydroponics?
    Faster plant growth
    Lower initial costs
    No weeding required
    Higher crop yields
    30s
  • Q5
    What is a disadvantage of hydroponics?
    More weeding required
    Higher initial and operational costs
    Slower plant growth
    Lower crop yields
    30s
  • Q6
    Which of these is NOT a type of liquid hydroponic system mentioned?
    Nutrient film technique (NFT)
    Soil-based hydroponics
    Aeroponics
    Deep water culture
    30s
  • Q7
    What material is rockwool made from?
    Ground-up basalt rock
    Recycled plastic
    Shredded wood
    Coconut fiber
    30s
  • Q8
    In a passive hydroponic system, how is water drawn to the plant roots?
    Through pressurized mist
    By capillary action
    By gravity
    Through a pump
    30s
  • Q9
    Which hydroponic system is described as the simplest of all active systems?
    Water Culture System
    Ebb and Flow System
    Drip System
    Wick System
    30s
  • Q10
    In the Ebb and Flow System, what controls the flooding and draining of the grow tray?
    Plant roots
    Gravity
    A timer
    A manual valve
    30s
  • Q11
    What is the recommended pH range for hydroponic culture?
    3.0 to 4.0
    4.0 to 5.0
    6.0 to 7.0
    5.0 to 6.0
    30s
  • Q12
    What is the normal concentration range for nitrogen in most nutrient solutions?
    30 to 50 mg/L
    200 to 300 mg/L
    100 to 200 mg/L
    70 to 150 mg/L
    30s
  • Q13
    Which micronutrient has the highest concentration range in nutrient solutions?
    Iron
    Copper
    Zinc
    Boron
    30s
  • Q14
    What is the main difference between soil-grown and hydroponically-grown plants in terms of physiology?
    Hydroponically-grown plants are physiologically different
    Soil-grown plants absorb nutrients faster
    There is no physiological difference
    Hydroponically-grown plants have different root structures
    30s
  • Q15
    In soil, how do plants absorb nutrients?
    By breaking down rocks
    From inorganic elements in soil solution
    Through leaves
    Directly from organic matter
    30s

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