Which term is defined as the change in physical state from liquid to gas at the surface of a liquid
1 sublimation
2 vaporization
3 evaporation

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?

Which two factors contributed to creating a global culture? the creation of the united nations improvement in telecommunications health issues such as the ebola virus increased opportunities for global travel

Nerve cells are specialized to respond to stimulitrue or false?