Which of the following statements is true?
a. elements in the same group have the same number of electron shells.
b. elements in the same period have the same number of valence electrons.
c. elements in the same period have similar characteristics, like reactivity and valence electrons.
d. elements in the same group, or family, have similar characteristics, like reactivity and valence electrons.

would be false hope this out

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

hope this ! this is not copied! search it up, it's free of plagiarism!

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide