Answer: the main purpouse of physical maps usually show the most important political boundaries, such as state and country boundaries. So, this is true.
Explanation:
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Answer:
Fertilizer: The ash from the volcanoes can act as extra nutrients for plants. The chemicals in the ash can make the soil richer which is beneficial for many plants.
Tourism: Volcanoes can attract people from all over the world. This can cause people to pay in order to visit. This can be beneficial to people who like in the area, since they can make money off of the tourist
Research: Volcanoes can allow humans to better understand the earth. They can also learn the patterns of the volcano's eruptions or the seismic activity leading up to the eruption.
Entertainment: Volcanoes can be used as entertainment. For example, people go on hikes or study the environment. This can lead to discoveries also.
Platinum is found in its pure native form, or in platiniridium, a natural alloy of platinum and iridium. Platinum is present in thin sulfide layers in certain maficigneous bodies and is mined in Canada, Russia, South Africa, the USA, Zimbabwe and Australia. Some platinum is obtained as a by-product of copper and nickel processing.
