alleryExcess nutrients turn a pond green with free-floating algae. This is an:
AOzone hole
BAlgal bloom
COil spill
DAcid rain
Answer & Solution
Correct answer: B. Algal bloom
1. Nutrients feed planktonic algae.
2. They multiply and colour the water.
3. This is an algal bloom.
_Source: syllabus Biology, Chapter 16, Environmental Issues._
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