Which is not a step in the water cycle?

Question

Which is not a step in the water cycle??  
A. Condensation  
B. Transpiration  
C. Nitrification  
D. Absorption

Accepted Answer

Correct Answer: (C)Nitrification. 
Rationale: Nitrification is not a step in the water cycle.The water cycle describes the continuous movement of water through the environment in different physical states (solid, liquid, and gas). It includes processes such as evaporation, condensation, precipitation, transpiration, runoff, and infiltration or absorption into the ground. Nitrification, however, is a biochemical process involving nitrogen compounds and belongs to the nitrogen cycle, not the water cycle.A) CondensationCondensation is a major and essential step in the water cycle. It occurs when water vapor in the atmosphere cools and changes into tiny liquid droplets, forming clouds and fog. This process allows water that evaporated from oceans, lakes, and land surfaces to return to the Earth later as precipitation. Because it directly involves the movement and phase change of water, condensation is a true step in the water cycle.B) TranspirationTranspiration is also a genuine step in the water cycle. It refers to the release of water vapor from plant leaves through small openings called stomata. Water absorbed by plant roots travels upward through the plant and eventually enters the atmosphere as vapor. This process is especially important in forested regions and contributes significantly to atmospheric moisture, making it a key part of the water cycle.C) NitrificationNitrification is the correct answer because it does not involve the movement or transformation of water. Instead, it is part of the nitrogen cycle. In this process, specialized bacteria convert ammonia into nitrites and then into nitrates in the soil. These chemical transformations help plants obtain usable nitrogen but have nothing to do with the circulation of water through the environment. Therefore, nitrification is not a step in the water cycle.D) AbsorptionAbsorption, also called infiltration, is an important step in the water cycle. It occurs when rainwater or melted snow soaks into the soil and moves downward to become groundwater. This process helps replenish aquifers, supports plant growth, and eventually allows water to return to rivers and oceans. Because it involves the movement of water through the Earth, absorption is part of the water cycle.ConclusionThe water cycle includes physical processes that move water through the atmosphere, land, and living organisms. Condensation, transpiration, and absorption are all part of this system. Nitrification, however, is a chemical process in the nitrogen cycle, not the water cycle. Therefore, the correct answer is C) Nitrification.

Which is not a step in the water cycle?

A
Condensation

B
Transpiration

C
Nitrification

D
Absorption

Nitrification is not a step in the water cycle.

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Which is not a step in the water cycle?

A Condensation B Transpiration C Nitrification D Absorption

Nitrification is not a step in the water cycle.

Topic Flashcards

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Related Questions

A
Condensation

B
Transpiration

C
Nitrification

D
Absorption