Soils contain small or trace amounts of many minerals, including the chemical elements phosphorus, calcium, potassium, magnesium, and sulfur. which statement describes the role of these elements, if any, in the life of a plant?

a. plants use these elements in small amounts for a variety of purposes throughout their life cycle.
b. plants incorporate these elements into most plant compounds, including starch and cellulose.
c. plants take in these elements only for specific events in their life cycle, such as producing flowers.
d. plants do not need these elements, as plants are made entirely of carbon, oxygen, nitrogen, and hydrogen.

Magnesium, calcium, phosphorous, sulfur these are essential nutrients for plants. These are required in trace quantity but are very important for plant life. Point A. will be correct answer.

Explanation:

As in B. starch n cellulose are composed of only carbon, oxygen and hydrogen.

As in C. These elements are not required on special occasion but are necessary throughout plant life.

As in D.  C H N O  is the primary component plants need but these secondary nutrients are equally necessary for growth n structure of plant.

So answer A. Is the correct option.

Calcium plays the most important role in structure formation of plants. Also act as messenger molecule in signaling. Deficiency  of calcium caused wilting , weakened stem and ultimately death of plant.

Magnesium is the key element in chlorophyll molecule. It is necessary for chlorophyll formation.

Sulfur is another very important element in plant life, it is necessary for protein synthesis in plants.

Phosphorous plays an important role in  process of cell devision , photosynthesis and respiration.

Potassium is very crucial in gaseous exchange ,it operates the opening and closing of stomata.

chemical because it warmed up which involves temperature and it bubbled which includes changing

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