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Which of the following factors contribute to the periodic changes in Earth's temperature known as the Milankovitch cycles? Select the THREE correct answers.

A): Earth wobbles slightly on its axis

B): The concentration of carbon dioxide in Earth's atmosphere is decreasing

C): Earth's atmosphere has been enriched in oxygen by cyanobacteria

D): Earth's orbit alternates between a circular and an elliptical shape

E): Earth's axial tilt varies between 22 and 24 degrees

F): Earth's shape is spherical

Which statement best describes a typical difference that could be found between the "analysis" and "conclusion" sections of a lab report? a) only the "conclusion" describes errors that occurred during the experiment, and only the "analysis" section suggests further research.b) only the "analysis" section includes specific data comparisons, and only the "conclusion" section suggests further research.c) only the "analysis" section discusses whether the original hypothesis was supported, and both sections include graphs of data.d) only the "conclusion section discusses whether the original hypothesis was supported, and both sections suggest further research.(the answer is b i just took the test)

How have high taxes on tobacco products impacted the number of people who use them? a. the number of tobacco users has increased. b. the number of tobacco users has decreased. c. the number of tobacco users has not changed. d. the number of adolescent tobacco users decreased, while the number of adult users increased

Which type of respiration takes place when there is no oxygen present? a. anaerobic b. mitochondrial c. cellular d. aerobica. anaerobic