Lake Ray was once home to thousands of walleye fish. But soil runoff from a nearby golf course in the 1980s made the water almost uninhabitable for the fish, and reduced their numbers to almost zero. This image is courtesy of Fond du Lac County, WI In recent years the golf course has been relocated, and efforts have been made to clean up the effects of runoff to return Lake Ray to its original conditions. This was done so that the walleye's numbers might increase. This sort of effort is known as A. habitat restoration B. reforestation C. repopulation D. spear fishing

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

the journeys of marquette, joliet and la salle a) new france expand.

all three of these explorers explored the midwest and the area around the great lakes, which they subsequently claimed for france.

this was a big portion of territory and expanded new france which before then only consisted of quebec province in northeastern canada