As you know, the oceans are a complex system that covers most of the earth, and contains a huge amount of resources. protecting these resources is one reason to try and prevent the pollution of the oceans. algae is one ocean resource in particular that is vulnerable to pollution. the algae are a valuable resource because they absorb carbon dioxide from the atmosphere and release into the atmosphere. a) oxygen b) nitrogen c) water vapor d) carbon monoxide

Phase changes are chemical changes. true or false

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.

Within a pendulum, as potential energy decreases, energy increases. a. heat b. kinetic c. frictional d. gravitational