Lions, giraffes, elephants and other animals gain their energy

Lions, giraffes, elephants and other animals gain their energy through various sources like the food they eat, water, oxygen, as well as the sun. However, they do get their energy mainly from the food that they eat and also water. 

The war began as a fight between mayans and the landowners of the country. the main causes of the guatemalan civil war was started by the greed of the united fruit company, the fear of communism, and the racism toward the  mayan  people.

5×^2+20-15 or -(5x^2-20+15)