An aurora is produced when there is a collision between and in earth's upper atmosphere.
a. atoms; molecules
b. light; atoms and molecules
c. neutrinos; atoms and molecules
d. the solar wind; atoms and molecules

Drag each tile to the correct box. match the given symbol or molecular formula to the term that best describes it. element -organic compound -inorganic elemental molecule -inorganic compound -answers given: so2, k, ci2, c6h6

What is turgor pressure, what causes it, and what does it do for a plant?

Anton created a chart listing different types of materials. which best complete the chart?