Need
will give
dont guess. i need correct answers.
sorry for the inconvenience.

It's lithogenous i believe of course i looked it up.

5×^2+20-15 or -(5x^2-20+15)

Answer the collision of tectonic plates;

Historians are researchers of the past or people who understand the history of people. with this field, they must possess qualities such as being unbiased, patient, efficient reader, has a knack for logic and critical thinking and reasoning, disciplined, open-minded, resourceful, with good analytical ability, good reasoning skills and problem solving!