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Plants obtain hydrogen from _________

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in Biology – Class 11 by (272k points)
Plants obtain hydrogen from _________

(a) atmospheric hydrogen

(b) water in soil

(c) methane from fertilizers

(d) H2 from sunlight

The question was asked by my school teacher while I was bunking the class.

The origin of the question is Transport of Mineral Nutrients topic in division Transport in Plants of Biology – Class 11

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The correct answer is (b) water in soil

To elaborate: Plants obtain hydrogen from water in the soil. Hydrogen from sunlight is formed from fusion reactions and is helpful in photosynthesis. Atmospheric hydrogen is inflammable and not helpful for plants. Fertilizers are not preferred as a source for hydrogen as it has many side effects. Water is the best source of hydrogen for plants.

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