Question
A. Plant roots take in water from the soil.
B. Plants take in carbon dioxide from the air.
C. During photosynthesis, plants make food and release oxygen into the air.
D. Energy stored in plants is transferred to humans and animals that eat them.
Answer (325)
A. The interaction of plant roots taking in water from the soil involves only one of Earth's spheres, which is the water sphere.
Final answer:
None of the interactions provided involve only one of Earth's spheres; they all involve two or more spheres. However, the interaction 'Plant roots take in water from the soil' most specifically illustrates a single connection to the geosphere and hydrosphere. Thus, all options represent multi-sphere interactions.
Explanation:
Understanding Earth's Spheres
To determine which interaction involves only one of Earth's spheres, we need to analyze the provided options regarding their connections to the geosphere, hydrosphere, atmosphere, biosphere, and other spheres.
- Plant roots take in water from the soil. This interaction involves the geosphere (soil) and the hydrosphere (water), as it describes the exchange between the soil and water.
- Plants take in carbon dioxide from the air. This interaction brings together the atmosphere (air) and the biosphere (plants), making it a two-sphere interaction.
- During photosynthesis, plants make food and release oxygen into the air. This also involves both the biosphere (plants) and the atmosphere (oxygen released), hence not limited to one sphere.
- Energy stored in plants is transferred to humans and animals that eat them. This involves the biosphere (plants) and another living organism, which means it is a multi-sphere interaction.
From the above assessments, the only interaction that involves only one of Earth's spheres is when plants take in water from the soil, primarily involving the hydrosphere and geosphere.
Learn more about Earth's spheres here:
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