Earth Science Midterm Review

The minimum stream velocity necessary to transport a sediment particle that is 0.1 centimeter in diameter is closest to

• 0.1 cm/s
• 0.002 cm/s
• 5.5 cm/s
• 10.0 cm/s

The first P-wave of an earthquake took 11 minutes to travel to a seismic station from the epicenter of the earthquake. What is the seismic station’s distance to the epicenter of the earthquake and how long did it take for the first S-wave to travel that distance?

• Distance to epicenter: 3350 km
  S-wave travel time: 4 min 50 sec
• Distance to epicenter: 3350 km
  S-wave travel time: 6 min 10 sec
• Distance to epicenter: 7600 km
  S-wave travel time: 9 min
• Distance to epicenter: 7600 km
  S-wave travel time: 20 min

Which location is on a major rift valley?

• A
• B
• C
• D

Compared to the ages of the calcite cement and the conglomerate, the relative ages of the pebbles are

• younger than both the calcite cement and the conglomerate
• younger than the calcite cement, but the same age as the conglomerate
• older than both the calcite cement and the conglomerate
• older than the calcite cement, but the same age as the conglomerate

If a metamorphic rock bubbles when a drop of acid is placed on its surface, the rock is most likely

• slate
• schist
• marble
• quartzite

The Genesee River flows across both the Allegheny Plateau and the Erie-Ontario Lowlands in New York State. This river flows

• northward, in the same general direction as the Hudson River
• northward, in the same general direction as the Niagara River
• southward, in the same general direction as the Hudson River
• southward, in the same general direction as the Niagara River

This movement occurred along which type of plate boundary?

• convergent

• divergent

• transform

• complex

An earthquake occurs at 10:05 a.m. At 10:09 a.m., the first P-wave from this earthquake is detected at a seismic station. Approximately how many kilometers (km) from the epicenter is this seismic station located?

• 1000 km
• 2000 km
• 2600 km
• 5600 km

Compared to the density and composition of the oceanic crust, the continental crust is

• less dense and more mafic
• less dense and more felsic
• more dense and less mafic
• more dense and less felsic

A change in climate to one that is more humid would cause the

• shape of the hills to become more rounded
• elevation of the area to become higher
• porosity of the bedrock to increase
• rate of chemical weathering to decrease