Agroup of students is investigating how the addition of salt impacts the floatation of an egg in water. four identical cups were taken for the experiment. the data of the experiment are shown. experimental record cup amount of water (ml) amount of salt (g) level of egg above water 1 450 0 sinks to bottom 2 450 68 2 cm 3 450 136 3 cm 4 450 272 4 cm what was the independent variable in this experiment? level of egg above water amount of water in the cup amount of salt added type of cup

the answer is the amount of salt added..

The correct answer is "Amount of salt added".

Explanation:

The independent variable in an experiment is the one expected to produce the effect, and the one that is not affected by the other variables. In this experiment a group of students is investigating how the addition of salt impacts the floatation of an egg in water. We can conclude that the amount of salt is the independent variable because is the one expected to produce the effect (the floatation of an egg in water) and the one that the students are adding independently of the other variables.

ability to mate mark me brainliest

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

read more on -