What is the best classification of this fossil, and during which geologic time period did the organism that produced this fossil exist? 1
2
Classification: Coral
Geologic time period: Permian
Classification: Coral
Geologic time period: Ordovician
Classification: Trilobite
Geologic time period: Permian
Classification: Trilobite
Geologic time period: Ordovician
3

Which objects allow humans to access groundwater? check all that apply.

1. crust 1 the metallic layer at the earth's center 2. inner core 3 the firm layer between the crust and the asthenosphere 3. lower mantle 2 the layer surrounding the inner core 4. asthenosphere 4 the semi-solid layer between the top layer and the upper mantle 5. upper mantle 5 the layer between the asthenosphere and lower mantle 6. top layer 6 the earth's outermost layer 7. outer core 7 the hottest part of the mantle

In the von thunen model of agricultural land use, what is produced closest to the city epicenter? a. dairy, vegetables, and fruits b. field crops, such as corn and wheat c. beef and other animal products d. wood and lumber