Answer:
Rate of change of volume of the pile 
Explanation:
Given -
Rate of increase of the base of the pile 
inches per minute
Height of the pile 
the radius of the base
Let "h" be the height of the pile and "r" be the radius of the base.
Then 
Radius "r" 
inches
Rate of change of radius i.e
Volume of conical pile
Change in volume of conical pile
Substituting the value of rate of change of radius, we get -
Rate of change of volume of the pile
D would be the answer tomthis
The cell is the smallest level of organization and is composed of chemicals and atoms. These chemicals regulate the structure and functioning. Thus, the statement is true.
<h3>What is a cell?</h3>
A cell has been defined as the basic unit of the organization of organisms that have been known to be composed of chemicals, atoms, and molecules. They are bonded together to perform various functions.
The chemicals and elements involved are the fundamentals that provide the structural support and functions of the cell like the carbohydrates and lipids provides shape to the cell.
Therefore, the statement is true.
Learn more about the cell, here:
brainly.com/question/13021101
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Your question is incomplete, but most probably your full question was, that cells are composed of chemicals, and both the structure and function of cells are regulated by basic chemistry principles. (True/false).
<u>Answer:</u>
<em>Farmers definitely use the information above to plan out their crops from one year to next.</em>
<u>Explanation:</u>
Nitrogen is an essential nutrient required for healthy plant growth. Corn is an important food crop and after its cultivation the soil is depleted of its nitrogen. <em>Cultivation of any crop on soils that lack nitrogen will not yield good result.</em>
Thus the nitrogen in the soil has to be replenished. Soybean is a crop that has symbiotic bacteria living on its roots. <em>This bacteria help in fixing atmospheric nitrogen.</em> Thus the nitrogen level will get replenished.
Thus cultivating soybean on the land in the period between <em>harvest and sowing of corn would be a healthy practice that increases yield and maintains soil health. </em>
