Which best describes the energy of a sound wave as it travels through a medium? It increases.
Olt decreases.
O li remains the same.
O It depends on the medium.

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

snell's law

refractve index = sin incidence / sin refraction

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it