Ws, o the Earth’s____.A: surfaceB: atmosphereC: attitudeD: bent

Just over two－thirds of Earth’s surface is covered by wafer, ______ more than 98 percent o

When a spacecraft travels, one of the major problems is reentry into the Earth’s _______.A

The Earth Day Groceries Project ______ .A．was inspired by a friend of Mark" s who works at

Without the sun s light______the earth s surface, no life could exist on the earth.A．warms

The cause for the heat in interior of the earth is______.G.E.OLOG.I.STS H.A.VE. B.E.E.N. S

The satellite sent into space in___is in orbit___above earth.A.the 1990s; 450 kmB.the 1