Where is geothermal energy being used and is successful?

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

Which of the following is the sl unit used to measure temperature a. kilogram b. liter c. meter d. kelvin

This diagram shows how seed plants are grouped. which is the missing label? bryophytes angiosperms pteridophytes monocots