Which one of the following events in a botanical garden is never directly influenced by light?

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Q: 199 (SSC/NA)

Which one of the following events in a botanical garden is never directly influenced by light?

question_subject: 

Science

question_exam: 

SSC

stats: 

0,9,5,1,3,1,9

keywords: 

{'photosynthesis': [20, 0, 4, 11], 'flowering': [1, 0, 0, 0], 'botanical garden': [0, 0, 0, 1], 'light': [16, 4, 34, 62], 'transpiration': [1, 0, 0, 1], 'fertilization': [0, 1, 0, 2]}

The correct answer is option 4: Fertilization. Fertilization is the process in plants where the sperm from the pollen combines with the egg to form a seed. This process is not directly influenced by light as it occurs within the reproductive organs of the plant.

Option 1: Flowering is directly influenced by light as plants use photoperiodism, a physiological response to the duration of light received, to regulate when to flower.

Option 2: Photosynthesis, the process by which plants convert light energy into chemical energy, is directly dependent on light.

Option 3: Transpiration, the loss of water vapor from plants, is indirectly influenced by light as it increases with higher light intensity, leading to increased evaporation of water from plant leaves.

Therefore, option 4 is the only event in a botanical garden that is not directly influenced by light.