Photosynthesis produces oxygen and cellular respiration give carbon dioxide
Pot A that contained no fertilizer or compost will serve as a control in this experiment.
<h3>What is Fertilizer?</h3>
Fertilizer may be defined as any chemical or natural substance which is added to the soil with the intention to enhance the soil productivity.
Pot B contained fertilizer, while pot C contained compost, they will definitely grow more than pot A, but pot A serve as a control for this experiment because it does not contain any added resources into it. Hence, it grows naturally.
Thus, it is well described above.
To learn more about Fertilizers, refer to the link:
brainly.com/question/15854400
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Answer:
An ecosystem includes the ways these organisms live, feed and reproduce within that particular area. Ecosystems contain many components, but the four main things needed in an ecosystem are plants, animals, rocks and minerals, and water.
the Ozone Layer is the answer
