Answer:
Because oil reduces the friction between the surface of your ring and your finger.
Thus it helps you to remove your ring easily
Hope it helps
Answer: D
Explanation: pH = - log( c). If c= 1.0 M. PH = 0, if c=0.001 M. PH = 3
Answer:
d) C,O,F
Explanation:
because if you add up the atomic no.s (which is directly the size of the element)of each set d) is smallest.
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
