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Crank
3 years ago
10

Which statement is correct about how lights travel

Biology
1 answer:
Mamont248 [21]3 years ago
8 0

Answer:

1. Answer: Light can travel in a vacuum, and its speed is constant if the source is moving or stationary.  

Light travels at constant speed in vacuum even if the source is moving or stationary. If the source is moving, the apparent frequency/ wavelength changes.

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Distinguish between innate and acquired immunity
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Innate immunity you are born with.

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Which of the following areas of content knowledge is MORE heavily tested (as a percentage of the total certification in the SPHR
soldi70 [24.7K]

The question is incomplete. The complete question is as follows:

The most widely known HR certifications are the PHR (Professional in Human Resources) and the SPHR (Senior Professional in Human Resources, both sponsored by the Human Resource Certification Institute (HRCI). Visit the HRCI website [https://www.hrci.org/], and answer the following question about the PHR and SPHR certifications.

Which of the following areas of content knowledge is MORE heavily tested (as a percentage of the total certification) in the SPHR (Senior Professional in Human Resources) than in the PHR (Professional in Human Resources)?

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I believe the awnser is B
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