Scientific laws describe natural relationship that have been tested repeatedly and another as a universal Andrew which of the following describes a scientific theory.. pls help last question

There are main groups in the modern periodic table of elements

When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.

Why is permeable soil best for plants that need a lot of drainage?