What is the atomic number of L?

12

14

2

8

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

All of the following are part of the biosphere except

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate