Answer:
The correct answer is : b. the 30 arms with the new formula
Explanation:
Independent variable is a variable that is present in the experiment and research experimenting about and do not depend on any other variable. In this experiment the researcher is experimenting about the new sunscreen and its effect on the people.
In this experiment the 30 arms with new formula is independent variable that would change or altered the dependent variable.
Thus, the correct answer is : b. the 30 arms with the new formula
I think the answer would be B.)
The explorer has discovered "A shield volcano".
The role microbiologists can play in reducing the number of Parasitic helminths infections is to create public awareness for environmental and personal hygiene.
<h3>What is Parasitic helminths infections?</h3>
These are infections that are caused by parasitic helminths.
The role microbiologists can play in reducing the number of Parasitic helminths infections is to create public awareness for environmental and personal hygiene.
This infection can be diagnosed through stool analysis in a laboratory and antihelminth drugs can be given such as albendazole for the treatment.
Learn more about parasites here:
brainly.com/question/999225
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