To get wealthy and expand empires which worked until the Chofu American cough revolution cough. Hope this helps
Answer:
(True) Oil helped the nation's economy due to oil being valuable
Cumulus clouds form in rising air. The cloudy air becomes warmer than its surrounds and continues to rise as a buoyant thermal. These thermals transport the cloud droplets upwards; they grow from more condensation or from colliding with other drops
