The o'keefe's have 75 gallons of cucumbers for pickling. the 1.5 m koh solution costs $3.50 per liter, 9 m h2so4 solution costs $8 per liter, and ethanol costs $20 per liter. a 50 g jar of alum from the grocery store costs $5.79. do you think it’s worth the time and trouble for richard and diane to make their own alum from discarded aluminum cans? explain your answer showing all calculations.

Plz me ! 1 which of earths spheres contains most of its mass? a atmosphere b hydrosphere c geosphere* d biosphere 2 erosion and weathering are examples of which types of forces? a constructive forces b destructive forces* c gravitational forces d inertia-related forces 3 which of the following statements about earths atmosphere is true? a earths atmosphere contains 78% water vapor which is essentail to life b earths atmosphere contains 21% oxygen c earths atmosphere contains carbon dioxide which all life forms require d earths atmosphere allows radiation from the sun to pass through it and warm earths surface* 4 the strenght of the force of gravity between two objects is determined by which of the following factors? select all that apply a the messes of the objects* b the distance between the objects* c the volumes of the objects d the surface area of the objects 5 earth and moon are kept in there respective orbits due to the influence of a inertia b gravity c gravity and inertia* d neither gravity or inertia if you answer all questions right i will give