Hundreds of millions of years ago, when fossil fuels were formed, large amounts of a carbon dioxide were trapped underground b n
itrogen were trapped in rocks during extensive volcanic activity c phosphate gas were added to the atmosphere through erosion and evaporation. d sodium were used to form ancient fossils, seashells, and limestone
If both of them had the same exact age, both of them would be ten years old. If will was 4 years older, you would add 4 years to Will and subtract Anna's age by 4.