Approximately How Long Does It Take Light to Travel from the Fingertips

question 72

Multiple Choice

Approximately how long does it take light to travel from the fingertips of a person's extended arm to one's eye?

• A) zero time because light is transmitted instantaneously
• B) 2.5 trillionths of a second (2.5 × 10^-12 sec)
• C) 2.5 billionths of a second (2.5 nanoseconds)
• D) 2.5 millionths of a second (2.5 microseconds)

Comprehend the role of human activities in altering habitat and affecting wildlife populations.

Understand the importance of genetic diversity in species conservation.

Recognize the implications of climate change for marine ecosystems and acidification on marine life.

Realize the importance of coupled human-natural systems for biodiversity conservation.

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Definitions:

Representative Sample

A sample that closely mirrors the characteristics of the population from which it is drawn, ensuring the results of a study can be generalized.

Random Sample

A sample selected in such a manner that each member of the population has an equal chance of being included, ensuring the generalizability of results.

Cross Cultural Sample

A selection of research subjects drawn from multiple cultures intended to analyze how cultural contexts influence behaviors, beliefs, or other phenomena.

Statistical Inference

The process of drawing conclusions about populations or scientific truths from data subject to random variation.