*Question*
If melting occurs when ice is heated above its melting point, then melting occurs when ice is? Answer choices: - heating liquids - temperature changes - heat is produced - cooled - heated below melting point - frozen - heated above melting point - It gets heated up
**Answer**
heated above melting point

*Question*
If caves can be formed by carbonic acid in groundwater seeping through rock and dissolving limestone, then what is one element used to create caves? Answer choices: - sunlight - heat energy - Calcium carbonate - hydrogen and oxygen - calcite - carbonic acid - less water - salinity
**Answer**
carbonic acid

*Question*
If dNA messages to proteins are manufactured by RNA, then dNA messages to proteins are manufactured by what? Answer choices: - RNA - DNA - HIV - cell - SNPs - gene - MTT - ATM
**Answer**
RNA

*Question*
If gills provide aquatic animals with oxygen, then how do aquatic animals get oxygen? Answer choices: - photosynthesis - gills - rivers - blood - solutes - lungs - streams - carbon transfer
**Answer**
gills