Multiple Choice
Approximately how much cerebrospinal fluid (CSF) does the human brain produce per day?
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1. Introduction to Biology
Introduction to Biology
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What does the hydrologic cycle describe?
A
The process by which plants convert sunlight into chemical energy
B
The continuous movement of water on, above, and below the surface of the Earth
C
The transfer of energy from one trophic level to another in a food chain
D
The cycling of carbon through the atmosphere, oceans, and living organisms
Verified step by step guidance1
Step 1: Begin by understanding the term 'hydrologic cycle.' The hydrologic cycle refers to the continuous movement of water within the Earth's systems, including the atmosphere, surface, and subsurface.
Step 2: Recognize the key processes involved in the hydrologic cycle, such as evaporation (water turning into vapor), condensation (formation of clouds), precipitation (rain, snow, etc.), infiltration (water soaking into the ground), and runoff (water flowing over the surface).
Step 3: Compare the hydrologic cycle to the other options provided in the question. For example, the process of plants converting sunlight into chemical energy refers to photosynthesis, which is unrelated to the hydrologic cycle.
Step 4: Eliminate the option about energy transfer in a food chain, as this describes trophic levels and energy flow, not water movement. Similarly, the cycling of carbon pertains to the carbon cycle, not the hydrologic cycle.
Step 5: Conclude that the hydrologic cycle specifically describes the continuous movement of water on, above, and below the Earth's surface, making this the correct answer.
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