A large research project was carried out in the oceans surrounding Antarctica to learn whether adding iron-containing compounds to the iron-limited polar sea would enhance the growth of phytoplankton (small, free-floating photosynthetic organisms). This project was performed with the hope that if plankton growth were significantly increased over large areas, it might slow global warming. What is the basis for such an expectation?

Here is the answer for the question – A large research project was carried out in the oceans surrounding Antarctica to learn whether adding iron-containing compounds to the iron-limited polar sea would enhance the growth of phytoplankton (small, free-floating photosynthetic organisms). This project was performed with the hope that if plankton growth were significantly increased over large areas, it might slow global warming. What is the basis for such an expectation?. You’ll find the correct answer below

A large research project was carried out in the oceans surrounding Antarctica to learn whether adding iron-containing compounds to the iron-limited polar sea would enhance the growth of phytoplankton (small, free-floating photosynthetic organisms). This project was performed with the hope that if plankton growth were significantly increased over large areas, it might slow global warming. What is the basis for such an expectation?
1) The increased biomass would lead to decreased solar heating due to absorption of light by photosystems I and II.
2) The increased biomass will lead to decreased levels of atmospheric oxygen through respiration.
3) The increased biomass will act as a sponge (a carbon sink) for atmospheric carbon dioxide.
4) The increased biomass will lead to increased levels of atmospheric oxygen through photosynthesis.

The Correct Answer is

3) the increased biomass will act as a sponge (a carbon sink) for atmospheric carbon dioxide

Reason Explained

3) the increased biomass will act as a sponge (a carbon sink) for atmospheric carbon dioxide is correct for A large research project was carried out in the oceans surrounding Antarctica to learn whether adding iron-containing compounds to the iron-limited polar sea would enhance the growth of phytoplankton (small, free-floating photosynthetic organisms). This project was performed with the hope that if plankton growth were significantly increased over large areas, it might slow global warming. What is the basis for such an expectation?

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