Quiz 3.2

_____ is a solid substance found naturally in the earth's surface that has never been alive.

• aluminum

• gold

• malleable

• mineral

• ore

_____ is able to be dented or shaped.

• aluminum

• gold

• malleable

• mineral

• ore

_____ is a process used to separate metal in ore from other metals.

• vein

• smelting

• malleable

• mineral

• ore

_____ is a material that has usable amounts of metal in it.

• vein

• smelting

• malleable

• mineral

• ore

_____ is a concentrated area of specific minerals.

• vein

• smelting

• malleable

• mineral

• ore

_____ is a valuable metal that often indicates wealth.

• vein

• aluminum

• gold

• mineral

• ore

_____ is a strong, lightweight metal that is the most abundant metal in the earth's crust.

• vein

• aluminum

• gold

• mineral

• ore

Which prevents crops and soil from washing downhill?

• contour plowing

• ground cover

• fallow ground

Which prevents soil erosion in unused fields?

• contour plowing

• ground cover

• fallow ground

Which is land that is given a period of rest to allow natural processes to replenish the nutrients in the soil?

• contour plowing

• ground cover

• fallow ground