When were the first pictures of the Milky Way taken? Feedback the late 1800's
O the late 1800's
the early 1900's
the mid 1900's
the early 1800s

What is the correct equation for cellular respiration?

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.