Plates that move toward each other are called _____ Which layer of earth has the most volume? What is limestone made out of? Lava is what type of rock? What is coal made out of?

What is the most efficient way to irrigate crops? Headwaters of Tigris and Euphrates is located in _____ Headwaters of the Nile river are located in _____ Areas of porous water saturated layers underground are known as _____ Most water in the U.S. is used for _____ Saltwater intrusion is caused by _____ Subsidence is caused by _____

Hosted By Mrs. Boyd

Rock cycleMining WaterOther

Row 1, Col 1 List earth’s interior zones in Order beginning with what Is right under the crust. (Asthenosphere) Mantle, outer core, inner core

1,2 This type of plate Boundary forms when Plates move apart. divergent

1,3 Lava that has cooled is an example of What type of rock. igneous

1,4 Limestone is made up of _____. Shells, skeletons or CaCO3

2,1 Coal is made out of this. Compacted plant remains, mostly carbon

2,2 Plates that move toward each Other form what type of boundary. convergent.

2,4 Plates that move parallel To each other but In opposite directions Produce this type of fault. Transform

3,1 Identified and profitably Extractable resources are Called _____ Reserves

3,2 The waste soil and rock that are Removed during surface mining Is called _____. Spoils, spoil banks

3,3 The waste minerals on An ore is called _____ gangue

3,4 The gangue that is removed Is now called _____ tailings.

4,1 Depletion time can be extended by _____ (list 3 things). Using less, recycling, finding a substitute, better mining technology, discovering new resources

4,3 These currents cause the oceanic And continental plates to move. Convection currents in the mantle, asthenosphere

4,2 The cleanest burning coal Is called _____ Anthracite

4,4 _____ becomes lignite With increased pressure. Peat

5,1 What is depletion time? Time it takes for 80% of a resource to be used up

5,2 What is used to extract gold from gold ore? Cyanide or mercury

5,3 Anthracite and marble are What type of rock? Metamorphic

5,4 Subsurface mining can cause The ground above to sink in. This is called _____ Subsidence

Row 1, Col 1 The headwaters of the Nile River are located in this country. Ethiopia

1,2 The hydrologic cycle is powered by ____ and ____ Gravity and the sun

1,3 Was once the world’s 4 th largest freshwater lake. Aral Sea

1,4 According to the U.N., in 2005, 1 in ___ people lack regular Access to clean water for drinking, Cooking, and washing. 6.

2,1 Slightly salty water. brackish

2,2 Surface runoff that we can count On from year to year is called _____. Reliable runoff

2,3 percolation. Movement of water through the spaces between the rock and soil layers. Recharge of aquifers is due to this process.

2,4 Two methods of desalination. Reverse osmosis, distillation

3,1 Approx. % of earth’s water supply Available as liquid water or 0.024

3,2 This uses the most water In your house. toilet

3,3 Least efficient type of irrigation. Flood irrigation

3,4 Slightly dirtied water from bathtubs Showers, and sinks. Gray water

4,1 Sprinkler system that moves in a circle And uses low pressure. Center-pivot

4,3 The largest producer of Freshwater from sea water. (a country) Saudi Arabia

4,4 Most water in the middle east From rivers, comes from what 3 rivers. Jordan, Nile, Tigris or Euphrates

5,1 Changing the flow of a stream To increase the rate of discharge. Stream channelization

5,2 3 ways to prevent or control flooding. Dams, levees, stream channelization, flood plain, restore wetlands, prevent erosion by protecting forests, management

5,4 This leads to saltwater Intrusion and sinkholes. Withdrawing too much ground water

Row 1, Col 1 Which countries invaded Congo for its minerals? Uganda, Rwanda

Row 1, Col 1 Name a water intensive crop. Cotton, rice