We want to study how pH affects the growth of oysters
What is the dependent variable:
What is the independent variable:
Write a hypothesis that you could use to test how pH affects the growth of oysters

Hypothesis: If the pH is related to the growth of oysters and oysters are placed in water with varying pH levels to test growth, then (INSERT YOUR LEVELS HERE, MORE BASIC WILL HAVE THE BEST GROWTH, MORE ACIDIC WILL HAVE THE WORST GROWTH. WHAT IT SHOULD LOOK LIKE then the pH of 3 will have the least amount of growth followed by the pH of 5, 7, and 9.). This will happen because a lower pH means less carbonate which oysters require to build their shells. As the acidity rises, oyster's shells will become thinner meaning slower growth and death rates will rise.

Independent Varible: pH (I would probaly also add the pH of what like it should be the pH of water)

Dependent Variable: oyster growth

your answer is "the 1950's"

the index of refraction of the second medium is higher. i just took the test trust me !