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>
Answer:
Speaker of House
Explanation:
President - Donald Trump
↓
Vice President - Mike Pence
↓
Speaker of the House of Representatives - Nancy Pelosi
~theLocoCoco
Answer:
B. The open-field system meant everyone could farm their own land.
Explanation:
the open-field system permited progressive peasants to farm as they pleased without having to conform to the old restrictive pattern. increasing the food production of great britian.
Maybe mesopotamia
Sorry if I answer the wrong answer