Anon renewable resource can always be replaced with a synthetic version

a. true
b. false

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

How can you approximate the number of calories required to keep you in energy balance?

Identify the composition of oceanic and continental crystal rocks.in a model of earth’s interior,where would these rocks appear?