Which statement accurately describes the relationship between weight and mass? A:Weight is an object's mass multiplied by it's diameter.
B:Mass is an object's weight multiplied by it's diameter.
C:It's weight is an object's mass multiplied by the amount of gravitational force acting on that object.
D:Mass is an objects weight multiplied by the amount of gravitational force acting on that object.

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

In the water cycle , when does water undergo a chemical change

If a grape were placed in a hypertonic solution what would happen and why?