An earthquake P-wave arrived at a seismograph station at 01 hour 21 minutes 40 seconds. The distance from the station to the epicenter is 3,000 kilometers. The earthquake's origin time was

a. theta waves. this is because the person is in a light sleep which means the brain waves would show these kind of waves.

the answer is a. harriet tubman was a nurse on the battlefield.

nationalization is the set of dispositions and operations by means of which the state assumes, in varied form, the administration of private companies, of groups of companies or of the totality of certain economic sectors previously managed by individuals, such as the land portions. nationalization is the opposite of privatization. it is also called nationalization of the means of production, although a nationalized company can be previously both national and foreign ownership. nationalization or nationalization is a very characteristic action of ideologies such as socialism and nationalism.