Vistas: Journey to the End of the Earth · Class 12 · CBSE · Science English
Why does the chapter present phytoplankton as vital to the Antarctic ecosystem?
Practice question from Vistas: Journey to the End of the Earth (Class 12 · CBSE · Science English), with the correct answer and a step-by-step solution.
medium · MCQ · Q-2F2978
Why does the chapter present phytoplankton as vital to the Antarctic ecosystem?
- A.They absorb carbon dioxide and form the base of the marine food chain.Correct answer
- B.They produce the ozone layer above Antarctica.
- C.They cause the movement of tectonic plates.
- D.They prevent all sunlight from reaching the ocean.
Solution
Phytoplankton absorb carbon dioxide and support the marine food chain. Any disturbance to their survival can affect the wider Antarctic ecosystem.
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