Structure and Properties of Matter:Question 7 Which of the following statements is true?
Select one:
The molecules of liquid water have less kinetic energy than those of water vapor.
The molecules of liquid water and water vapor have a different atomic composition
The molecules of liquid water interact with one another and those of water vapor do not
The molecules of liquid water are bigger than the molecules
water vapor

Photosynthesis converts light energy to chemical energy. which molecules are the end product of this transformation of energy in this reaction?

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

Consider the model of the oxygen cycle on earth. the majority of earth's oxygen reservoirs are found in the a) atmosphere. b) biosphere. c) hydrosphere. d) lithosphere.