Answer:
The geocentric model says that the earth is at the center of the cosmos or universe, and the planets, the sun and the moon, and the stars circles around it. The early heliocentric models consider the sun as the center, and the planets revolve around the sun.
Explanation:
Humans are blessed with five sensory organs such as eyes, ears, nose, tongue and skin which are influenced by the change in the environment.
Sensation refers to sensing the outer environment with the help of the sensory organs in the form of touch, smell, sound, taste and sight. According to the environmental conditions, the sensory organs act and send the message to the brain which is then interpreted. For example, change in the environmental temperature such as hot or cold is sensed by the skin and interpreted by the brain.
The cornea is the only part of the eye that touches air.
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