Schiavo Final Exam Earth Science

Subsurface ocean currents continually circulate from the warm waters near the equator to the colder waters in other parts of the world. What is the main cause of these currents? 

• differences in the topography along the ocean floor 
• differences in density of ocean water 
• the rotation of Earth on its axis 
• movement of the jet stream 

What is most responsible for the presence of groundwater in an area? 

• the movement of water from a confined aquifer into surface water 
• the movement of surface water and precipitation through soil and rock
• the movement of water from streams and rivers to watersheds
• the movement of surface water through impermeable rock 

Which is the most common contamination source for freshwater resources? 

• runoff 
• digging wells
• melting of glaciers
• lightning

Which layer of the soil profile would be affected the most by weathering and erosion?

• 1
• 2
• 3
• 4

Which of the following isn’t a factor/force involved with erosion?

• gravity
• wind
• tension
• water

One complete revolution of the Earth around the sun takes about

• one rotation
• half a year
• one year
• one season

The Earth takes about __________________ hours to complete one rotation of its axis.  

• 12
• 24
• 14
• 28

Name the phase of the moon for letter c

• New Moon
• Full Moon
• Waxing Crescent
• Waning Crescent

When a hemisphere is pointed directly towards the Sun, what season will it be?

• Fall
• Winter
• Spring
• Summer

Warm air moving north from the Gulf of Mexico is:

• continental tropical
• continental polar
• maritime tropical
• maritime polar