Advances in technology have reduced the cost of manufacturing mp3 players. if demand does not change,
a. more mp3 players will be sold at a higher price.

b. fewer mp3 players will be sold at a higher price.

c. more mp3 players will be sold at a lower price.

d. fewer mp3 players will be sold at a lower price.

Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes

Which of the choices below is one of the primary gases found in the atmosphere? a. helium b. carbon dioxide c. nitrogen d. argon

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.