Question 3 Every few hundred thousand years, the magnetic poles of Earth reverse. Rocks that contain iron provide a record of both normal and reversed magnetic
poles. The diagram below shows the pattern of normal and reversed magnetic poles as recorded in the rocks on either side of the Mid-Atlantic Ridge
How does this show evidence of seafloor spreading?

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.

All of the following are homogeneous mixtures except a) sugar dissolved in water. b) orange juice. c) coffee with cream. d) household vinegar. e) apple juice