Help 1 state five fact about the earth
2 list seven variety roles of satellites
3 state 3 criteria that make pluto different from other planets
4 full meaning of IAU
5 list the type of contact force
6 what is force

6. force is the pull or push which changes or tends to change the (either rest or motion) of a body.

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).