The technique of cultivating plants in a nutrient solution without the use of soil is known as Hydroponics. Hydroponics is an alternative to the traditional cultivation methodologies and is fast replacing them.
1. Which of these is the fibre obtained from the coconut’s husk
(a) Perlite
(b) Vermiculture
(c) Coir
(d) Rockwool
Also Check: Types of Hydroponic Systems
Answer: (c)
2. The form of hydroponics that does not require a growing medium at all is
(a) Aquaculture
(b) Static solution culture
(c) Medium culture
(d) Aeroponics
Answer: (d)
3. Plants with larger roots can be cultivated with which of the following types of hydroponics
(a) Ebb and flow system
(b) Drip system
(c) Nutrient Film technique
(d) None of these
Answer: (c)
4. Hydroponics is a method of cultivation of plants without the use of
(a) water
(b) air
(c) soil
(d) sunlight
Answer: (c)
5. Which of the following is not true about hydroponics?
(a) Requires high investment
(b) Technical knowledge required
(c) Can be misused to cultivate banned crops
(d) Plants through hydroponics cannot be cultivated everywhere
Answer: (d)
6. Salts and water in hydroponic plants are absorbed by
(a) Leaves
(b) Stem
(c) Roots
(d) Outer Layer of plants
Answer: (d)
7. The scientist who used nutrient culture solution in hydroponic cultures was
(a) Knop
(b) Sachs
(c) Wallace
(d) Webster
Answer: (a)
8. Deficiency of mineral nutrition does not cause which of these
(a) Chlorosis
(b) Etiolation
(c) Necrosis
(d) Shortening internode
Answer: (b)
9. Roots of a plant in hydroponics are submerged in a solution of dissolved _________
(a) fertilizers
(b) oxygen
(c) mineral salts
(d) chemicals
Answer: (a)
10. Which of these plants may not be suitable for cultivation through hydroponics
(a) Tomatoes
(b) Carrot
(c) Cucumber
(d) Strawberries
Answer: (b)
Read More:Â Biology MCQs for NEET
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