Aparticle that has a negative charge
a. protons
b. neutrons
c. electrons
d. molecule

Scientist believe that earths core is around 6000°c where does this heat come from

Computer models can scientists predict weather. some computer models can show the predicted path of hurricanes. what other events could a computer model warn us of? a) undersea earthquakes , tornadoes, and avalanches b) tornadoes c) avalanches d) undersea earthquakes

How many structures do prokaryotic cells have in common with the eukaryotic cells? a. 2b. 3c. 4d. 5