Which of the following is a combustion reaction? select one: a. methane + oxygen -> carbon dioxide + water b. zinc + copper chloride -> zinc chloride + copper c. hydrochloric acid + sodium hydroxide -> sodium chloride + water d. sodium + chlorine -> sodium chloride

1) describe the physical layout of the ocean floor ? 2) explain how the dumbo octopus swims differently than other octopus species and why this would be an advantage in the aphonic zone . 3) why are the types of organisms that live at each underwater hot vent so dramatically different ?

Which three statements represent the benefits of performing experiments using computer simulations?

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of