Answer:
A scientific hypothesis that is subsequently extensively tested and continues to appear valid may be called a <u>THEORY.</u>
What that does not make sence
Active transport is the movement of molecules against the concentration gradient from an area of high concentration to an area of low concentration, which requires energy in the form of ATP. Hope this helps! ^.^
The correct answer is option C) A wet spring before vegetation is growing. A lack of roots holding soils and sediments together and an over-abundance of water can result in mass movements.
