When Only Synthetic Fertilizers Are Used on a Crop, the Quantity

question 20

Multiple Choice

When only synthetic fertilizers are used on a crop, the quantity used needs to be increased over time because ________.

• A)they are washed away by seasonal rains, but residual fertilizers remain
• B)organisms in the soil develop a resistance to these fertilizers
• C)more and more genetically engineered crops are being planted
• D)synthetic fertilizers provide no organic bulk

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Definitions:

Heads

One of the two possible outcomes when flipping a standard coin, the other being tails.

Chi-Square Distribution

A statistical distribution that is used to describe the distribution of a sum of the squares of k independent standard normal random variables, useful in hypothesis testing and constructing confidence intervals.

Degrees Of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution or to a system without violating any constraints.

Left-Tailed Area

Refers to the area under the probability distribution curve to the left of a specified value, often used in hypothesis testing to determine significance.