Increasing research and development into new forms of renewable energy are most important because a) the price of gasoline is high. b) people like saving the planet. c) current forms of energy are being depleted. d) it is better to keep innovation progressing.

C. current forms are being depleted faster than they can be naturally replenished. therefore, we must find new forms of renewable energy in case we run out of our current forms.

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!