Organizations and agencies are a result of a contingency plans
b. hunting regulations
C. government involvement
d. all of the above

Hydrogen is the most abundant element on the periodic table..hope it .

A.(nh4)(2co3)is the correct answer 

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   

Ibelieve the answer is d. titaniumhope my answer has you : )