Multiple choice

Match the columns.

 
Column I Column II
P. Bio-fertilisers 1. Nostoc, Spirulina
Q. Alginates producers 2. Gelidium, Graciliaria
R. Agar-Agar producers 3. Fucus, Laminaria
S. Fodder 4. Pelvitia, Ascophyllum

  1. P - 1; Q - 2; R - 3; S - 4

  2. P - 1; Q - 3; R - 2; S - 4

  3. P - 2; Q - 3; R - 4; S - 1

  4. P - 3; Q - 2; R - 4; S - 1

  5. P - 2; Q - 1; R - 3; S - 4
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Nostoc, Oscillatoria, Scytonema, Spirulina, etc. are used as fertilisers in rice fields.

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