Need help! I will give to who gets it right. Which is the best hypothesis for the scientific question “How does light intensity affect the rate of photosynthesis?”
(A) Light intensity, CO2 concentration, and temperature are factors that determine the rate of photosynthesis.
(B) Light intensity has no effect on the rate of photosynthesis.
(C) If the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease.
(D) Light intensity has an impact on the rate of photosynthesis.

Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite

Which statement best describes the role of religion and culture in ancient medicine?