1.To show the flow of energy through ecosystems, food chains are sometimes drawn as energy pyramids. ... The waste and dead matter are broken down by decomposers and the nutrients are recycled into the soil to be taken up again by plants, but most of the energy is changed to heat during this process.
2.Human activities have greatly increased carbon dioxide levels in the atmosphere and nitrogen levels in the biosphere. Altered biogeochemical cycles combined with climate change increase the vulnerability of biodiversity, food security, human health, and water quality to a changing climate.
3.Avoid using phosphorus fertilizers and nitrogen fertilizers.
Answers & Comments
Answer:
1.To show the flow of energy through ecosystems, food chains are sometimes drawn as energy pyramids. ... The waste and dead matter are broken down by decomposers and the nutrients are recycled into the soil to be taken up again by plants, but most of the energy is changed to heat during this process.
2.Human activities have greatly increased carbon dioxide levels in the atmosphere and nitrogen levels in the biosphere. Altered biogeochemical cycles combined with climate change increase the vulnerability of biodiversity, food security, human health, and water quality to a changing climate.
3.Avoid using phosphorus fertilizers and nitrogen fertilizers.
Explanation:
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