Choose all words below which describes a unit of measure used in geologic time scale. a) decade b) eon c) epoch d) era e) century f) period

Which of the following is true about fossils? a. the relative age of fossils cannot be determined from their position in sedimentary layers. b. fossils found in lower layers of sedimentary rock are as old as fossils found in upper layers of sedimentary rock. c. fossils found in upper layers of sedimentary rock are older than fossils found in lower layers of sedimentary rock. d. fossils found in lower layers of sedimentary rock are older than fossils found in upper layers of sedimentary rock.

The european union was formally established in

The economies of nordon could be described a. unable to use rich resources b. struggling but diverse c. dependent on one product d. healthy and diverse