During which era did the supercontinent pangaea break up?
a- paleozoic
b- mesozoic
c- precambrian
d- cenozoic

Match the following items. 1. high-intensity bundle of energy being emitted from some decaying nuclei gamma ray 2. particle radiating from the nucleus of some atoms beta particle 3. negative particle identical to an electron but radiating from a decaying nucleus alpha particle

When the water vapor cools it condenses select a number that represents his process on the

What are the 4 phases of matter in order of increasing engery content?