The image attached at the bottom hold the 2 questions that need to be answered. I would really appreciate it if some one could answer them for me. :) i will mark brainliest answer aswell!!

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory

Which statement is actually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

Asolubility table shows that almost all compounds of group 1 metals are soluble in water. this general rule tells you that mgi2 is soluble rbno3 is soluble cacl2 is soluble co2 is soluble