You’ve set up an experiment to test whether spraying the lea…

You’ve set up an experiment to test whether spraying the leaves of your plants with water keeps them alive longer than just watering the soil. For half of your plants you water the soil each day and spray the leaves with water each day. For the other half of the plants you only water the soil. This goes on for one month and then you check how many plants in each group are still alive. Based on the description above, what is a controlled variable in this experiment?

Alexis wants to be happier. Some of the reasons for her unha…

Alexis wants to be happier. Some of the reasons for her unhappiness include being regularly disappointed about not having enough money or time to go out with friends and co-workers. She doesn’t have enough time to split between those in her social circle, and she also worries about what she will face when she dies. At the suggestion of her humanities professor she has chosen to experiment with the implementation of Epicurus’ philosophy of happiness. Which of the following steps would Alexis take if she were to practice the Epicurean approach to happiness? Select all answers that apply.