What process must occur to cause sediment to stick together when forming sedimentary rock? cooling
cementation
Compaction
weathering

Over the last 90 years, scientists have added to the body of evidence supporting the big bang theory. what is the latest piece of evidence discovered in 2014?

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.