Nociception can be described as a response to harmful or potentially harmful stimuli (chemical, mechanical, thermal). It includes four stages:
1.Transduction or first phase: A noxious stimulus occurs (injury, burn, incision) and it is transformed into a electrical signal that can be carried via transmission.
2. Transmission or the 2nd phase: the pain signal travels to the central nervous system, first to the spinal cord than to the brain.
3. Perception or the 3rd phase: occurs in the cerebral cortex where the perception of pain is generated (the conscious awareness of a painful sensation).
4. Modulation-last phase: pain message is usually inhibited through this phase.
Instead, they use uranium fuel, consisting of solid ceramic pellets, to produce electricity through a process called fission. Nuclear power plants obtain the heat needed to produce steam through a physical process. <span>This process, called fission, entails the splitting of atoms of uranium in a nuclear reactor.</span>
Answer:
<em>A. The air pressure in that section of Earth’s atmosphere decreased.
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Explanation:
In the free air, the density of the air diminishes as the air is warmed. On increasing the pressure, the density also increases. The air is packed. The density increments as pressure increments.
The thickness and density of air decline with the increase of height because of that the surface area of the Earth's climate diminishes with increase in height, along these lines gas particles can spread out.
The density of the air is most minimal at a high rise on a hot day when the pressure of the atmosphere is low.