What would be the result if earth's unique atmosphere did not exist?

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !

According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.

How many grams of mgbr2 are needed to produce 75g or metal?