Question

6. Most of the plant's nitrogen, phosphorus, iron and magnesium are taken up from the :
a) Aquatic sources
b) Soil
c) Mountains
d) Sea water ​

Answer 1

Answer:

B

Explanation:

Terrestial plants take most of nutrients from soil because of the nitrogen fixing bacteria and other decomposers present

Hope this will help you

Answer 2

Most of the plant's nitrogen, phosphorous, iron and magnesium are taken up from the (b) soil.

Explanation:

• The elements and compounds needed for the plants to grow, plant metabolism and for their external supply is called plant nutrients.
• Macronutrients are nitrogen, phosphorous, potassium, calcium, oxygen, hydrogen that are taken from the soil.
• Micronutrients consists of iron, boron, manganese, zinc, copper, nickel, molybdenum.
• The plants will absorb these elements as ions, since all these elements stay in the soil as salts.
• Fertilizer is not needed when the soil conditions makes the plants to adapt to the climate and enough nutrition of the soil to complete the life cycle.