Which statements about earth’s core explain earth’s magnetic field? check all that apply. answers: the inner core is solid. the outer core is liquid and moving. earth’s core is composed of iron and nickel.

An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10

Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?

How are positive ions different from neutral atoms