The
diagram shows the current percentage of each population by age and
gender (male/female) for two countries. After carefully analyzing the
graph I came with the conclusion that:
(1)
Country A, the population growth over the next 20 years will place
the greatest strain on the environment since the larger percentage of
young people could result in rapid population growth.
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hope this helps, Regards.
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Answer:
independent variable: the amount of music the plants are exposed to
dependent variable: the height of the plants
control variables: type of plant, amount of water & sunlight.
The 10x objective... it's not zoomed in all the way, but it will provide a large field of vision to locate the specimen. Then after it's located you switch to the 40x objective to zoom in on a the specimen to observe it.
I think air is a solution because it is made up of different types of gases including 21 percent oxygen, 78 percent nitrogen, and one percent trace gases.
Salt dissolves in water
The solution has already reached its solubility and cannot dissolve any more solute
A dilute solution has a little bit of solute dissolved in the solvent, while a concentrated solution has a large amount of solute dissolved in the solvent
If you heat a solution normally the solubility increases meaning more solute can be dissolved in the solvent
i hope i was able to help :)