Near the end of both March and September, A. spring begins in both hemispheres.
B. the sun's energy strikes everywhere on Earth with the same intensity.
C. Earth's axis is no longer pointing toward the North Star.
D. neither end of Earth's axis is titled toward or away from the sun. ​

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What is an example of a physical property?

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

Draw the lewis dot structure for each of the following polyatomic ions