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Read the following statements and select the correct ones.
(i) All the colour components of the visible spectrum are available for marine plants living in different depths of the ocean.
(ii) Many herbs and shrubs in rainforest adapt to photosynthesise optimally under very low light conditions as they grow under canopy trees.
(iii) Gradual increase in average global temperature will affect the distributional range of some species.
(iv)The quality of soil does not depend upon the weathering process.
(i) and (ii)
(ii) and (iv)
(ii) and (iii)
(i) and (iv)
Answers (1)
As discussed in Major Abiotic Factors: Light & Soil -
Tolerance of availability of light on species -
Many species of small plants (herbs and shrubs) growing in forests are adapted to photosynthesise optimally under very low light conditions because they are constantly overshadowed by tall, canopied trees.
- wherein
Many plants are also dependent on sunlight to meet their photoperiodic requirement for flowering. For many animals too, light is important in that they use the diurnal and seasonal variations in light intensity and duration (photoperiod) as cues for timing their foraging,reproductive and migratory activities.
Hence, the correct option is (c).
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