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AveGali [126]
3 years ago
14

Bena thinks that dissolving more salt in water causes the mixture’s freezing temperature to change.

Biology
2 answers:
kirill [66]3 years ago
7 0
I think it is A but I am not completely sure
pochemuha3 years ago
6 0

Answer:

The correct answer will be option- an experimental investigation, because it allows for the control of variables.

Explanation:

An experimental investigation is a type of scientific investigation which involves the sequential steps of the scientific method that is from forming a hypothesis and performing controlled experiments including the dependent and independent variables.

Since in the given question, the given statement assumes that adding more salt to water can cause the change in the freezing temperature of the mixture which could be tested only through the experiments.

The experiment is performed in which the amount of salt will be considered independent variable and the freezing temperature would be considered dependent variable.

Since independent variables can be controlled, therefore, the selected option will be the correct answer.

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We know that copper sulfate can be used in an experiment to test whether or not a protein is at hand, etc. Hope this helps!
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Where does lipids come from​
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Answer:

Explanation:

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I will give brainliest and 50 brainy points<br><br> What are two chromosomes in the original cell.
Iteru [2.4K]

Explanation:

As The Cell To Divide The Cell Make a Copy that make an Chromosome

The Chromosome are Called Sister Chromatids . The Sister are identical to the one another and are attracted to each other by Proteins Called Cohesins

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3 years ago
Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional
myrzilka [38]

Answer:

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Air pollution is a local, pan-European and hemispheric issue. Air pollutants released in one country may be transported in the atmosphere, contributing to or resulting in poor air quality elsewhere.

Particulate matter, nitrogen dioxide and ground-level ozone, are now generally recognised as the three pollutants that most significantly affect human health. Long-term and peak exposures to these pollutants range in severity of impact, from impairing the respiratory system to premature death. Around 90 % of city dwellers in Europe are exposed to pollutants at concentrations higher than the air quality levels deemed harmful to health. For example, fine particulate matter (PM2.5) in air has been estimated to reduce life expectancy in the EU by more than eight months. Benzo(a)pyrene is a carcinogenic pollutant of increasing concern, with concentrations being above the threshold set to protect human health in several urban areas, especially in central and eastern Europe.

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6 0
2 years ago
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slavikrds [6]

Answer: B. providing access to objects that are hard to find

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