The correct answer is an experiment.
An experiment refers to an investigative study, where a researcher scientifically tests a hypothesis. Specifically, a researcher tests the effect an independent variable (manipulated variable) on the dependent variable (outcome), to investigate whether there is a causal (cause and effect) relationship between the variables. For instance, if a researcher wants t<span>o determine a cause and effect relationship between alcohol consumption and driving ability, he or she would use an experimental research study to do so. </span>
In which country? England --> It led to liberal reform acts and improved the economy.
Answer:
<em>Untouchability is a social evil because the backward classes are denied the very fundamental rights, which are guaranteed to each and every citizen by the Constitution. ... Untouchability alienates people from the social structure and hinders the progress of the society as a whole.</em>
Explanation:
pls pls mark me branilest
Signing treaties is designed to control diplomatic communications.
I think it is B. Sorry if I'm wrong