I’m not sure if this is exactly what ur asking, but vitamin c, zinc, and copper are needed
Answer:
Independent variable - time. Dependent variable - the distance moved by the bubble along the capillary tube. Control variables - temperature, air flow or draughts, adequate supply of water.
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The stem transports nutrients made in the leaves to all parts in the plant.
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Phosphorus is usually a limiting factor or element.
<h3>Is phosphorus a limiting element or factor?</h3>
Phosphorus is usually considered a limiting factor or nutrient in aquatic ecosystems, meaning that the available quantity of this nutrient controls the pace at which algae and aquatic plants are produced.
In other words, phosphorus is a limiting nutrient for aquatic organisms. Its supply is usually small compared to available aquatic organisms.
Thus, Phosphorus is usually a limiting factor or element.
Learn more about phosphorus here: brainly.com/question/1357744
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