Asteroid 2004 MN4 (Asteroid Apophis) Was Expected to Pass Very

question 41

Multiple Choice

Asteroid 2004 MN4 (Asteroid Apophis) was expected to pass very close to Earth on Friday, April 13, 2029, with collision odds initially calculated as 1 chance in 37. NASA's further calculations now suggest that odds of a 2029 Earth impact are about how much?

• A)one in 1,000
• B)one in 10,000
• C)one in 50,000
• D)one in 100,000
• E)one in one million

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Definitions:

Sensory Adaptation

The process by which the sensitivity to a stimulus declines if the stimulus is presented for an extended period of time.

Stimulus

Any event or situation that evokes a response from an organism.

Sensory Apparatus

The complex of sensory organs and parts an organism uses to detect changes in its environment.

Vestibular Receptors

are sensory receptors in the inner ear responsible for detecting movement and changes in the position of the head, important for balance and spatial orientation.