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erik [133]
2 years ago
11

Students want to conduct an experiment to determine how road constructions impact the amount of PM in the air

Advanced Placement (AP)
1 answer:
lana [24]2 years ago
8 0

Answer:

The control group and the dependent variable are respectively; will be the 3 dishes placed on the road not under construction and the 3 dishes placed on the road construction site

What is a control Group?

A control group in an experiment is that which is made up of participants that do not receive the experimental treatment.

From the opening paragraph, it means when we are conducting an experiment, these people in the control group are randomly assigned to be in this group and as such they also closely resemble the participants or the individuals who receive the treatment.

In this question, the control group will be the 3 dishes placed on the road not under construction

The dependent variable is one that depends on other variables or constraints in an experiment. In this question the dependent variable will be the 3 dishes that were placed in the road under construction.

Read more about control at; brainly.com/question/25899557

Explanation:

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This question is not complete; here is the complete question:

A one-hectare pond is sampled in early September. The sample yields 1 small catfish as well as 17 benthic invertebrates that represent 10 species.

If the pond is resampled a year later, which of the following would best indicate that the pond had been adversely affected by adjacent development?

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B. An increase in low-tolerance species has occurred

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Explanation:

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Answer:

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Explanation:

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Explanation:

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