The control variable in any experiment is designed in order to apply the same steps of the experiment but with no change happens in the observations.
In this experiment, the student tries to know the effect of solubility of different water-soluble salts (NaCl, CaCl2 and KCO3) on the melting point of the solution. All these salts dissolve in water and give some effect on the melting point except for the sand as the sand doesn't dissolve in water.
Anemones and corals are restricted to shallow waters because they usually grow in the region of the euphotic zone where sunlight is easily available to perform photosynthesis.
<h3>What do you mean by Corals?</h3>
Corals may be defined as a structure composed of skeletons present in colonial marine invertebrates known as Coral reefs.
Corals and anemones require sunlight in order to survive. Hence, they live in the upper zone (euphotic zone) of the water bodies. If they allow growing in the benthic zone, they never survive due to the absence of sunlight.
Therefore, it is well described above.
To learn more about Corals, refer to the link:
brainly.com/question/1143432
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Fresh is for microbial absorption
frozen is for acute symptoms
Answer:
Positive aspects
the landscapes are paradisiac
the weather is amazing
the activities are always fun
living in a stress free life away from the city
tax system is interesting
Negative aspects:
you I'll be far away from family and friends
everything is more expensive
there are cyclonic periods and rain season
the islands are small, you would have visited everything quickly
you will probably miss the excitement of the city
it is hard to find a job
the sun sets early and days are shifted
Explanation:
