Answer: 3) Confounding variable
Explanation:Confounding variable is the variable that indicates about the external influential factors that produces the manipulated consequences of independent and dependent variable.This variable can lead to producing useless outcomes in an experiment.
According to the question, the changes occurring in interest of student in algebra can be due to the outside factors which are not generating the actual results and thus, experiment is getting ruined.
Other options are incorrect because application variable remain same for the experiment,system variable are the variables of certain system and reliability variables describe about the variable on which dependent or stable.Thus, the correct option is option(3)
<span>The play examines the effect regret has on human relationship as the humility that is required to repair damages done.
The element of drama that classifies this scenario best is <u>thought.</u></span>
The answer is Cerebral Palsy.
Cerebral palsy is caused by abnormal development of the brain or damage to the developing brain that affects a child’s ability to control his or her muscles.
Certain research suggests that smoking during pregnancy may increase the risk of cerebral palsy in offspring. Other research also suggests that heavy maternal alcohol consumption is a direct cause of pre/perinatally acquired cerebral palsy.
They made voting faster and reduced fraud.
