Which of the following substances best conducts electricity in an aqueous solution?
a. h2o b. nh3 c. ch3oh d. cacl2

Is this a scientific model? use complete sentences to explain why or why not. a graphic organizer showing the water cycle

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?