Answer:
European continent is your answer
<span>Each power plant gets a particular number of allowances, with each allowance allowing the company to emit one ton of sulfur dioxide.</span>
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)
The answer is D since it produces a brighter light but if a car comes from the other side of the road the light must be shut off otherwise the other driver may be not able to see
