What is the largest division of geologic time?

Alow pressure system is formed when an air mass cools over a cool surface and sinks. true or false

How many time zone are there on earth

The diagram shows , , and . which statement can be proven true from the diagram? a. ∠dgb is supplementary to ∠ega. b. ∠dgb is supplementary to ∠cgb. c. ∠cgb is supplementary to ∠agd. d. ∠ega is supplementary to ∠egc. e. ∠egd is supplementary to ∠cgb.