A student placed a living green plant in an airtight, transparent container filled with air from the room. The container was exposed to sunlight for one week. At the end of the week the student was to determine which gases had increased in concentration. Assuming enough water and carbon dioxide were available for the proper growth of the plant, which gas would you expect to be present in increased concentration?

Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.