Which actions help prevent groundwater erosion? Check all that apply. planting bushes
preserving trees
packing down soil
building drains with outlets
increasing the slopes of riverbanks

What is the difference between an igneous, sedimentary and metamorphic rock

What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.

In each transformation of energy , some energy what?