Answer: "gate-control theory (of pain)" .
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Answer:
Adding sodium to chlorine gas will produce table salt. The formation of a new substance shows that both physical and chemical change occurred.
Explanation:
The major reason why it has to be both physical and chemical is because there are some physical features that would change such as weight, appearance, color among others while the chemical properties would have changed immediately the addition occur
Answer:
Explanation:
Biodiversity varies with a change in altitude or latitude. The diversity increases as we move from high to low altitudes (i.e., from poles to equator). ... There is a decrease in species diversity from lower to higher altitudes on a mountain.
Answer:
Petroleum is a fossil fuel, meaning that it has been created by the decomposition of organic matter over millions of years. Petroleum is formed when large quantities of dead organisms–primarily zooplankton and algae–underneath sedimentary rock are subjected to intense heat and pressure.
Answer:
Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. The word usually refers to visible light, which is the visible spectrum that is visible to the human eye and is responsible for the sense of sight.
