Abiology student wants to conduct a study of how much sunlight affects the length of sleep for mice. she sets up four cages with a mouse in each cage. what are the independent variable, dependent variable, and constants?

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.