How did the the control of fire affect the development of early humans? select all that apply. a. people scared off dangerous animals. b. people started baking clay bricks for building. c. people used it to smelt iron. d. people were able to keep light on dark nights. e. people used fire to communicate across mountaintops. f. people cooked meat and plants.

What was one important characteristic of the russian military during world war i? a. it had more advanced military technology than its western european allies. b. it was an all-volunteer military that enjoyed high morale throughout the war. c. it defended russian territory but refused to attack german positions d. it was unable to provide its forces with adequate weapons and supplies.