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

Metamorphic rocks with a layered or banded look are called —

• foliated
• unfoliated
• striated
• evaporated

The breakdown of rocks and minerals into smaller particles without a change in composition is
called..

• igneous intrusion
• chemical precipitation
• mechanical weathering
• metamorphic foliation

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

• 1
• 2
• 3
• 4

The major disadvantage of using solar panels to generate electricity is that solar panels —

• release toxic fumes into the air
• cannot convert energy efficiently
• are affected by cloud coverage and day length
• produce energy that cannot be stored

Which of the following processes will change a sedimentary rock into an igneous rock?

• Melting and crystallization
• Erosion and deposition
• Deformation and deposition
• Faulting and fracturing

Which more likely to prevent mass-movement events?

• Constructing buildings in stream drainage paths
• Clear-cutting trees from the side of a mountain
• Paving roads next to sloping hills
• Contour plowing of crop areas

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

• gravity
• wind
• tension
• water