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patriot [66]
2 years ago
11

How are rivers and streams able to keep algae from growing

SAT
1 answer:
Varvara68 [4.7K]2 years ago
3 0
The running water sweeps the algae downstream and keeps it from growing.
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A data analyst is working with a data frame named customers. It has separate columns for area code (area_code) and phone number
VARVARA [1.3K]

The code chunk that lets the analyst create the phone_number column is: unite(customers, "phone_number", area_code, phone_num, sep="-"

<h3>What is a data frame?</h3>

A data frame refers to a two-dimensional array-like structure or table that is made up of rows and columns, which is typically used for storing data in R Studio using the R programming language.

In Computer programming, a data frame is a list of vectors that are all equal in length, and each column consist of values of one variable while each row consist of a set of values from each column.

<h3>The executable code in R Studio.</h3>

In this scenario, the code chunk that would be used to create a data frame that combines the two columns into a single column (phone_number) is:

  • unite(customers, "phone_number", area_code, phone_num, sep="-"

Read more on data frame here: brainly.com/question/25558534

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2 years ago
Which of the following foods do not require time and temperature control to limit the growth of pathogens and ensure safety.
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The temperature of a place often affect food. The option that is not of the Time/Temperature Control for Safety Foods is Processed garlic oil mixtures.

<h3 /><h3>Foods that require time and temperature control </h3>

There are different kinds of foods that require time and temperature control so that it can be safe. This food are known as TCS foods. They includes;

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Garlic often stay  long does when process into oil in any temperature.  It can be safely store in oil for about 4 months in the freezer. Only garlic in oil mixture kept at room temperature for about two hours may not be useful.

Learn more about Food from

brainly.com/question/10465534

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The buyer of the company's products and services. :)
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