Volcanic islands and island chains, like the hawaiian islands, were created by spots, which may or may not occur on
a plate's boundary.
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Volcanic islands and island chains, like the Hawaiian Islands were created by hot spots, which may or may not occur on  a plate's boundary.

Explanation:

Volcanic island and island chains were created by hot spots. Hot spots resulted in the formation of Hawaiian islands. Hot Spots are areas where the magma rises upwards till it erupts from the seafloor. Hot spots can be found in the middle or on the sides of tectonic plates.

The areas where tectonic plates come together to form volcanoes. Hot spots in the middle of the Pacific Ocean resulted in the formation of Hawaiian Islands. The hot spots do not move but the plates move which is why volcanic areas can be found in different regions.

a maximum–minimum thermometer. the scales are fahrenheit on the inside of the u and celsius on the outside. the current temperature is 23 degrees celsius, the maximum recorded is 25, and the minimum is 15, both read from the base of the small markers in each arm of the u tube. the bulbs are hidden by a plastic housing.

six's thermometer is a registering thermometer which can record the maximum and minimum temperatures reached over a period of time, for example 24 hours. it is used to record the extremes of temperature at a location, for instance in meteorology and horticulture. it was invented by a british scientist james six, born in canterbury, in 1780; [1] the same basic design remains in use.

it is also commonly known as a maximum–minimum, minimum–maximum, maxima–minima or minima–maxima thermometer, of which it is the earliest practical design.

the thermometer indicates the current temperature, and the highest and lowest temperatures since last reset.

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.