Iwill mark brainliest plz asap, : )

the theory of plate tectonics explains the movement of the plates by convection cells in which of the following layers?

inner core
outer core
crust
upper mantle

which of the following may occur at a transform plate boundary?

mountain building
formation of new oceanic crust
earthquakes
volcanoes

c is the answer because when something is left after something evaporates that shows the chemical change.

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.