How is climate change like a game of Tetris? How can kids stop climate change? What are some of the ways that you will help?

Climate Change Is like tetris as each block can change the Future of the planet the children of the Future can Stop the waste of the past and clean up the planet for a better future of their children hoping they do the same

the answer is:

carbon dioxide

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.