Which of these can be determined based on the knowledge about weather?

A If you should carry an umbrella
B Plants that can be grown
C Animals that may be found
D Clothes that should be bought

D-no effect on the rate

Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf