Match the name of the stage to the correct description

Match the name of the stage to the correct description. Not all words will be used. 1. B When water returns to the atmosphere via plants. 2. A step in the carbon cycle that didn’t really exist before the industrial revolution. 3. When nitrogen gets captured from the atmosphere by bacteria or even lightning. 4. Water is absorbed underground and can be stored in aquifers. 5. Water is not absorbed underground but collects on the surface of the earth. 6. Fungi and bacteria return nutrients from dead organisms to the soil. 7. Bacteria in the roots of plants convert nitrogen into usable forms, such as NO. 8. Organisms eat other organisms as a food source. 9. Organisms capture sunlight and store the solar energy as chemical energy in molecules like carbohydrates. 10. When nitrogen is returned to the atmosphere by bacteria as N₂. 11. Water falls from the sky as snow, sleet, or rain. 12. When organisms break down carbon-based molecules for energy and release CO₂ as a result. Part 3 List an example of human impact on each of the cycles. 1. Water cycle: A. Evaporation B. Transpiration C. Condensation D. Precipitation E. Runoff F. Infiltration 2. Carbon cycle: G. Combustion H. Photosynthesis I. Cellular respiration J. Consumption K. Decomposition L. Fossilization 3. Nitrogen cycle: M. Nitrogen fixation N. Ammonification O. Denitrification P. Nitrification

The Correct Answer and Explanation is :

Here’s the matching of each stage to its description:

Matching of Names to Descriptions

1. B – When water returns to the atmosphere via plants. (Transpiration)
2. G – A step in the carbon cycle that didn’t really exist before the industrial revolution. (Combustion)
3. M – When nitrogen gets captured from the atmosphere by bacteria or even lightning. (Nitrogen fixation)
4. F – Water is absorbed underground and can be stored in aquifers. (Infiltration)
5. E – Water is not absorbed underground but collects on the surface of the earth. (Runoff)
6. K – Fungi and bacteria return nutrients from dead organisms to the soil. (Decomposition)
7. P – Bacteria in the roots of plants convert nitrogen into usable forms, such as NO. (Nitrification)
8. J – Organisms eat other organisms as a food source. (Consumption)
9. H – Organisms capture sunlight and store the solar energy as chemical energy in molecules like carbohydrates. (Photosynthesis)
10. O – When nitrogen is returned to the atmosphere by bacteria as N₂. (Denitrification)
11. D – Water falls from the sky as snow, sleet, or rain. (Precipitation)
12. I – When organisms break down carbon-based molecules for energy and release CO₂ as a result. (Cellular respiration)

Human Impact on Each Cycle

1. Water Cycle: Deforestation and urbanization increase runoff and reduce transpiration, leading to changes in local climates and potential water scarcity.
2. Carbon Cycle: Fossil fuel combustion releases excess carbon dioxide (CO₂) into the atmosphere, contributing to climate change and disrupting the natural balance of the carbon cycle.
3. Nitrogen Cycle: The use of synthetic fertilizers increases nitrogen runoff into water bodies, causing eutrophication, which can lead to oxygen depletion and harm aquatic ecosystems.

Explanation

Each of these cycles—water, carbon, and nitrogen—plays a crucial role in maintaining ecological balance and supporting life on Earth. The water cycle regulates the distribution of water, affecting weather patterns and ecosystems. Transpiration, as a vital process where plants release water vapor, connects the terrestrial environment with the atmosphere. Urbanization disrupts this cycle by increasing impervious surfaces, leading to higher runoff and reduced infiltration.

The carbon cycle is equally essential, as it governs the flow of carbon among the atmosphere, land, and oceans. Combustion, especially from fossil fuels, has dramatically increased atmospheric CO₂ levels, exacerbating climate change. This alteration affects global temperatures and weather patterns, impacting ecosystems.

Lastly, the nitrogen cycle, which involves processes like nitrogen fixation and denitrification, is crucial for producing essential nutrients for plant growth. However, the overuse of nitrogen-based fertilizers has led to nutrient runoff, which poses risks to aquatic ecosystems through eutrophication, ultimately harming biodiversity. Understanding these cycles and their human impacts is vital for developing sustainable practices and mitigating environmental degradation.