Question

1)NAME THE FOLLOWING
A) TWO MINERALS OBTAINED BY THE PLANTS FROM AIR.
B) TWO MACRONUTRIENTS REQUIRED FOR THE SYNTHESIS OF CHLOROPHYLL.
C)A PLANT DISEASE CAUSED BY THE DEFICIENCY OF IRON.
D)A MACRONUTRIENT NEEDED FOR THE SYNTHESIS OF PLANT HORMONES.

Answer 1

Answer:

A) hydrogen , oxygen

B) magnesium, iron

C) Chlorosis

D) Iron,manganese, copper, zinc , boron and chlorine

Answer 2

Explanation:

A ...Carbon, hydrogen and oxygen are the basic nutrients plants receive from air and water. Justus von Liebig proved in 1840 that plants needed nitrogen, potassium and phosphorus.

B. For the synthesis of chlorophyll in plants, the elements needed are iron and magnesium.

C..Iron chlorosis is a yellowing of plant leaves caused by iron deficiency that affects many desirable landscape plants in Utah. The primary symptom of iron deficiency is interveinal chlorosis, the development of a yellow leaf with a network of dark green veins

D. Nitrogen, Potassium, and Phosphorous are obtained from the soil and are the primary macronutrients. Calcium, Magnesium, and Sulfur are the secondary macronutrients needed in lesser quantity.