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Emily does a study to see if people who are learning difficult tasks are hungrier than people who are learning easy tasks.She carefully develops one task that is easy and one that is difficult,controls the temperature and noise of the room for each group,and randomly assigns people to either the difficult or the easy group.She provides each group with Rocky Road ice cream and observes how many people eat it in each group.There is a confounding variable in her experiment.What is it?
World's Oil
The global reserves and production of petroleum, crucial for energy production and as a commodity in international trade.
International Trade
The exchange of goods, services, and capital between countries and territories, influenced by factors like tariffs, global supply and demand, and exchange rates.
Exporters
Individuals or companies that sell goods or services to foreign countries.
Netherlands
A country located in Northwestern Europe, known for its flat landscape, extensive canal system, tulip fields, windmills, and cycling routes.
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