What causes earthqakes to happen? Lightening? Thunder? What blessing do we say on them? On what type of wind do we say a blessing? What do we do/say when we see a rainbow? In what situations do we make a blessing on the sun, moon, constellations? What blessing is said on rain? Is there a debate regarding this? On what basis do we determine whether to say in cretain situations shehechiyanu or hatov v'hameitiv? What blessing does one make on the birth of a son? On the birth of a daughter?