Question : Water from the soil enters into the root hairs owing to:
Option 1: atmospheric pressure
Option 2: capillary pressure
Option 3: root pressure
Option 4: osmotic pressure
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Correct Answer: osmotic pressure
Solution : The correct option is osmotic pressure.
Plants root hairs get water from the soil through a process known as "osmosis." The pressure applied through this process is the osmotic pressure. Osmosis is the process by which water molecules pass across a semi-permeable membrane from an area of lower solute concentration to an area of greater solute concentration.
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Question : Plants require nutrients for their growth which can be supplied through _______.
Option 1: soil and air only
Option 2: soil, water, and air
Option 3: soil and water only
Option 4: soil only
Question : The process of seepage of water into the soil is called ________.
Option 1: infiltration
Option 2: degradation
Option 3: storage
Option 4: replenishment
Question : The northern plain in India is formed of which soil?
Option 1: Laterite soil
Option 2: Arid soil
Option 3: Alluvial soil
Option 4: Black soil
Question : Which plant tissue is responsible for the transportation of water and minerals from the soil to the stems and leaves?
Option 1: Xylem
Option 2: Parenchyma
Option 3: Collenchyma
Option 4: Phloem
Question : By which process do water-soluble inorganic nutrients go down into the soil horizon and get precipitated as unavailable salts?
Option 1: Fragmentation
Option 2: Leaching
Option 3: Decomposition
Option 4: Humification
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