The chemical reaction shows the production of sulfur trioxide. Which of the following reactant quantities would make oxygen gas the limiting reagent?.

Explain how earth is like a giant bar magnet. how is our magnetic field made?

Which scenario describes intraspecific, indirect competition? a. a peacock defends its territory against another peacock. b. lions and hyenas compete for the same prey animals. c. a male black bear eats fish in an area of a lake, so other black bears can’t. d. different species of birds fight over spilled popcorn on the ground.

What is it called when someone gets sick from eating food contaminated with germs or toxins? a. potentially hazardous food b. ptomaine poisoning c. foodborne illness d. raw food