Well since i need points I am going to say read the text
Answer:
Independent variable: DIFFERENT TEMPERATURE
Explanation:
The independent variable of an experiment is the variable that the experimenter changes or manipulates in order to effect an outcome or response in the measured variable/dependent variable.
In this experiment, a scientist wants to determine how temperature affects photosynthesis. He sets up the experiment by adding 20ml of water at different temperatures to three test tubes. Hence, the independent or experimental variable is the DIFFERENT TEMPERATURES GIVEN TO EACH PLANTS IN THE TEST TUBE because it is what the experimenter changes in order to effect a measurable outcome i.e. oxygen released in each balloon as a result of photosynthesis, which is the dependent variable
The solute is sodium chloride seeing as it is being dissolved. The solvent would be water.
Please be rightly informed that the formula for km/day is 1 kilometer per hour (kph) = 24 kilometer per day (km/day).
<h3>Fundamental quantities</h3>
These are quantities which forms the basic unit of measurement. The units of fundamental quantities are called fundamental units.
The three major fundamental quantities are:
Other fundamental quantities are:
- Temperature
- Amount of substance
- Magnetic flux
- Electric current
So therefore, the formula for km/day is 1 kilometer per hour (kph) = 24 kilometer per day (km/day).
Learn more about fundamental quantities:
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Used for holding, mixing, and heating small quantities of liquid chemicals.
