Alfred wegener l is best known for what hypothesis? a. plate tectonics b. sea floor spreading c. continental drift d. subduction

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

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

Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments