Biology, 18.03.2021 04:48, kanonhuffmanp3rnmy
Which method of heat transfer warms the air just above hot sand on a beach?
Convection, because heat is transferred through the solid sand
Conduction, because the air particles in contact with hot sand move faster
Conduction, because the heat moves with the help of electromagnetic waves
Convection, because the air particles transfer heat in the absence of a medium
Answers: 3
Biology, 22.06.2019 07:30, ebzloera
Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.
Answers: 1
Biology, 22.06.2019 08:20, barnhill6515
Which is not a characteristic of bacteria? a. they are unicellular. b. they are prokaryotic. c. they are the smallest form of life on earth. d. they are multicellular.
Answers: 2
Which method of heat transfer warms the air just above hot sand on a beach?
Convection, because hea...
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