Show the te causa ot 1 s earthquakes arc ara due to the phenomena of or folding of the earths upper strata the same tension and compression which produced many of the mountain ranges is here inaction in action As the interior of the earth cools it contracts and tends to leave the outer crust behind the weight of this outer crust however is greater than it can sustain and is therefore compelled belled to wrinkle c thus geolot geologists ats C explain the great ridges and furrows lv which aich constitute continents and river b basins i nad and th thy ty compare this folding of the earths crust with the wrinkling of the skin shin of a dried apple while the process of wrinkling or folding is going on the mig mighty aty movement of course destroys the equilibrium of the rock strata and in consequence earthquakes qua les L es occur and continue with g greater r eater or less violence violen cc until the equilibrium is again restored |