How do clouds affect climate? Check all that are true. A( by producing patterns of precipitation B( by reflecting around one-fourth of the Sun's energy that reaches Earth back into space C( by reflecting most of the Sun's energy back into space D( by producing the same level of precipitation in all climate zones​

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

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.

Why do oceanic plates tend to subduction when colliding with a continental plate