If you fill up a balloon with a small amount of air, then set it in direct sunlight, you will see that the balloon expands. this expansion is due to an increase in volume, which results from
a) a decrease in the pressure of the air in the balloon.
b) an increase in the temperature of the air in the balloon.
c) an decrease in the pressure of the air outside of balloon.
d) an increase in the temperature of the rubber that makes the balloon.

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.