Valence electrons can be found by determining the electronic configurations of elements. Thereafter the number of electrons in the outermost shell gives the total number of valence electrons in that element.
Answer:
active and passive transport
Explanation:
It is true that in the science laboratory setting, scientists often struggle to achieve valid results. A possible solution for this dilemma is to repeat the procedure for several trials.
To collect seeds
Globally, biodiversity is diminishing at an unprecedented rate “at the ecosystem, species, and genetic levels,” Chopra explains. ... Further, groups such as Bioversity International and Global Crop Diversity Trust fund seed banks around the world.