The photograph shows a New York State index fossil.

This index fossil would be classified as a

• brachiopod

• gastropod

• crinoid

• nautiloid

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

   Identify the geologic concept on the diagram states that most sediments are deposited in layers that are flat and parallel to Earth’s surface?

Base your answers to the question on the geologic cross section below and on your knowledge of Earth science. The cross section represents sedimentary rock units labeled A through D, a layer of volcanic ash deposits, and a basalt extrusion. An unconformity is present between rock units B and C. Line XY represents a fault. The rock layers have not been overturned.

 

State the name of one metamorphic rock that most likely formed in the zone of contact metamorphism between rock unit B and the basalt.

Base your answers to the question on the geologic cross section below and on your knowledge of Earth science. The cross section represents sedimentary rock units labeled A through D, a layer of volcanic ash deposits, and a basalt extrusion. An unconformity is present between rock units B and C. Line XY represents a fault. The rock layers have not been overturned.

 

Fossils of the multicellular, soft-bodied Centroceras organisms were found in rock unit C. Identify the Period that indicates the geologic age of this rock unit.

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Base your answers to the question on the geologic cross section below and on your knowledge of Earth science. The cross section represents sedimentary rock units labeled A through D, a layer of volcanic ash deposits, and a basalt extrusion. An unconformity is present between rock units B and C. Line XY represents a fault. The rock layers have not been overturned.

Determine the relative age sequence of the following geologic features, in order from oldest to

youngest: Basalt • Fault XY   • limestone D

Tags

NGSS.MS-ESS1-4

The picture fossil Mucrospirifer is considered to be an index fossil because it existed over

• large geographic region for a short period of time.

• large geographic region for a long period of time.

• small geographic region for a short period of time.

• large geographic region for a long period of time.

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

The cross section represents rock units within Earth's crust. Sedimentary rock layers are labeled 1 through 6.

The age of the igneous rock is

• younger than rock layers 4 and 5

• older than rock layer 3

• the same age as rock layer 3

• older than rock layers 1 and 2

Tags

NGSS.MS-ESS1-4

The photograph shows a cross sectional view of an iridium-rich meteor debris layer between two rock layers. This debris was deposited at the same time as the extinction of TRILOBITES. The layers have NOT been overturned.

Which photograph shows the most likely geologic time periods when the rock layers above and below this debris layer formed?

• 
• 
• 
• 

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

Base your answer to the question on the graph below and on your knowledge of Earth science. The graph shows the decreasing percentage of a radioactive isotope, carbon-14, as it decays and the increasing percentage of the disintegration product that forms.

Which percentage of this radioactive isotope remains at the end of 4-half-lives?

• 6.25%

• 12.5%

• 87.5%

• 93.5%

Base your answer to the question on the graph below and on your knowledge of Earth science. The graph shows the decreasing percentage of a radioactive isotope, carbon-14, as it decays and the increasing percentage of the disintegration product that forms.

Carbon-14 can be used to determine the ages of both a

• garnet crystal and calcite crystal

• Beluga whale bone and condor bone

• lava flow and a granite intrusion

• eurypterids fossil and dinosaur fossil

Tags

NGSS.HS-PS1-8