A student has a Petri dish and several marbles. Which of the following activities should the student perform to demonstrate phase transition from a liquid to a solid? A. Placing a few marbles in the Petri dish and shaking them vigorously to represent removal of energy
B. Packing the Petri dish with two layers of marbles and slowly jiggling them to represent removal of energy
C. Packing the Petri dish with two layers of marbles and slowly jiggling them to represent addition of energy
D. Placing a few marbles in the Petri dish and shaking them vigorously to represent addition of energy

it's filtration, but this is an assumption so my apologies if i got this

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.

it would be d. henry moseley

hope this !

and sorry if i'm late. have a good rest of your day! : d

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.