Question

fill in the blanks

(a) A total of ........... nutrients are essential to plants.

(b) ............ and .......... are supplied by air to plants.

(c) .............. is supplied by water to plants.

(d) soil supply .......... nutrients to plants .

(e) ........... nutrients are required in large quantity by plants and called as ..........

(f) ............ nutrients are needed in small quantity by plants and are called .............​

Answer 1

Answer:

a. 17

b. carbon, hydrogen /oxygen.

c. minerals.

d. nitrogen (N), phosphorus (P) and potassium (K).

e. macronutrients

f. micronutrients

Explanation:

e. Macronutrients include carbon, hydrogen, nitrogen, oxygen, phosphorous, potassium, calcium, sulfur, and magnesium.

f. Micronutrients are boron, chlorine, manganese, iron, zinc, copper, and molybdenum. A plant uses these nutrients to support its growth, life cycle, and biological functions.

Answer 2

Nutrients that plants require in larger amounts are called macronutrients. About half of the essential elements are considered macronutrients: carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur. ... Nitrogen is also used in the synthesis of some vitamins.