Answer:
The time will be "2 hours".
Explanation:
Around 10 km/hr, lava eruptions were travelling. The vents was just 15 km (9.3 mi) away Kalapana city as well as 20 km (12.6 mi) from Pahoa city.
So, we therefore need add the method, which would be: to taking out another time that civil defense officials just had to assess a city.
⇒ 
Thus, to measure the time spent throughout the community of Kalapana,
⇒ 

The civil defense officers provide 1.5 hours of time each assess the city of Kalapana.
In order to measure the time spent in the towns of Pahoa,
⇒ 

Answer:
Open-pit mining, also known as open-cast or open cut mining, is a surface mining technique of extracting rock or minerals from the earth by their removal from an open-air pit, sometimes known as a borrow.
Explanation:
When multinational corporations invest in a country they create employment opportunities. They account for increased incomes and expenditures in the economy of the host country stimulating growth. Workers also benefit from technology transfer as new machinery is imported into the host country.MNCs are believed to be highly beneficial for developing countries in terms of bringing employment opportunities and new technologies that spill over to domestic firms. Furthermore, MNCs often benefit from government subsidies, which could in the future be linked to investment in local firms.
Cooperation is the process of a group of organisms working or acting together for common, mutual, or potential benefit, rather than working in competition for selfish gain. Many plant and animal species cooperate with both conspecifics and conspecifics.
Learn more about Cooperation here
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Answer:
I think it's revolution of the earth