MCQ
The law of limiting factor was given by.
- ACalvin.
- ✓Blackman.
- CPriestley.
- DNone of these.
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$A.$ Cyanophyceae $a.$ Green colour
$B.$ Chlorophyceae $b.$ Blue green colour
$C.$ Phaeophyceae $c.$ Red colour
$D.$ Rhodophyceae $d.$ Brown colour