Why do we need ss? i dont get it‍♂️

What are the four qualities required in different relations

The photo shows a shopping mall in beijing, china. inside, there are food sites selling pizza and hamburgers and closing stores selling blue jeans and basketball sneakers. these items have become popular around the world because

There are 25 elements found in living things. how many of these elements are found in some organisms but not all? 1 , 6 , 19 , 25