How does an atom become a positively charged ion?
A by gaining one or more electrons
OB. by gaining one or more neutrons
c. by losing one or more electrons
OD by losing one or more neutrons

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