Choose all the answers that apply. CaCO3 is a compound found in cement. Which of the following elements are in CaCO3?

calcium
nitrogen
copper
oxygen
carbon

Class iii atmospheric hazards are those involving

These three organisms are interdependent on each other for their survival. what will happen if foxes are eliminated from the region? a. there will be more rabbits and less grass in the region. b. there will be more grass and fewer rabbits in the region. c. there will be fewer rabbits and less grass in the region. d. there will be more rabbits and more grass in the region.

During a load test, a battery's voltage drops below a specified value. what action should the technician take?