Nutrient Cycles Overview

Considering a sustainable forest management system, which three cycles are essential for ensuring the continuous supply of food, timber, fibers, and fuels?

• Carbon, Nitrogen, and Phosphorus Cycles

• Oxygen, Hydrogen, and Carbon Cycles

• Sulfur, Potassium, and Magnesium Cycles

• Calcium, Iron, and Zinc Cycles

How has the construction of a large industrial park near a river affected the natural cycles in the surrounding area?

• It has altered these cycles, affecting biodiversity and water quality in the river and surrounding area

• It has made the cycles more efficient in the surrounding area

• It has increased the global temperature only

• It has not had any significant impact on the natural cycles in the surrounding area

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Why is it important for urban planners to understand carbon, nitrogen, and phosphorus cycles when designing sustainable cities?

• To predict weather patterns

• To understand the consequences of human interventions in ecosystems

• To increase the use of inorganic fertilizers in urban farms

• To reduce the need for expanding urban agricultural land

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What determines the growth of tomato plants in a garden according to the text?

• The amount of water they receive

• The amount of sunlight they get

• The type of soil they are planted in

• The amount of nitrogen and phosphorus available in the soil

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How do farmers ensure their crops receive enough nitrogen?

• By planting legumes that host bacteria converting atmospheric nitrogen to usable forms

• Through the use of animal manure as fertilizer

• By allowing crops to directly absorb nitrogen from the atmosphere

• Through irrigation with nitrogen-rich water

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What is the purpose of developing computer models in the large-scale macronutrient cycles project?

• To increase global food production

• To improve our understanding of nutrient cycling change and its consequences

• To predict future weather conditions

• To create more efficient fertilizers

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