ENV 101 Environmental Science Key Concepts and Study Guide questions and answers Graded A+

ENV 101 Environmental Science Key Concepts and Study Guide questions and answers Graded A+ What are the steps of the scientific method? Observations → Questions → Hypothesis → Predictions → Test → Results How can you develop a hypothesis about an environmental problem? Review existing studies, talk with colleagues, investigate what is known about the problem. What causes algae growth in lakes? Excess nutrients (nitrogen and phosphorous) from sources like agricultural fertilizers and wastewater effluent. What are the controls for algae growth? Nutrient amount, warm temperatures, slow stagnant water. What is the difference between a controlled experiment and an observational study? Controlled experiment manipulates a variable to observe the outcome; observational study observes nature without manipulati