An opportunity cost is Group of answer choices

only an issue when there is not a scarcity of goods and resources

usually absent in a command economy

the next-best alternative you give up in order to do something else

when goods are recycled into other goods

Which presentation option is also known as a screen of a presentation?

What is a biogrochemical flow chart

Dr. williams conducted a survey in the mall, measuring the shopping habits of people ages 15, 25, 35, 45, and 55, with 10 people in each group. which of the following best describes her study? an experiment a cross-sectional study a case study a longitudinal study a double-blind study