Carbon, nitrogen, oxygen and hydrogen are considered ___ because they are required in relatively large quantities, whereas manganese, zinc, and copper are considered _ because they are required in very small quantities.

plant need approx 17 essential nutrients for growth and for completing its life cycle among which some are found in water and air. Nitrogen, carbon, hydrogen and oxygen needed the most and in large quantity as nitrogen helps in rapid growth and green color and is mobile and its deficiency lead to reduced growth and yellow foliage.

Carbon, nitrogen, oxygen and hydrogen are considered _______ because they are required in relatively large quantities, whereas manganese, zinc, and copper are considered _____ because they are required in very small quantities.

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Carbon, nitrogen, oxygen and hydrogen are considered ___ because they are required in relatively large quantities, whereas manganese, zinc, and copper are considered _ because they are required in very small quantities.