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 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 : 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

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 : 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