Is the rise of Co2 concentration in the atmosphere happening on a regional scale or a global scale?

[content deleted] - user123802726recklesschicken

one characteristic that is shared by all is a soft body. many

of these invertebrate animals also have an outer shell to protect their

body. oysters, clams, snails, and mussels are all mollusks. so are octopuses, squids, and slugs. mollusks live on land and in freshwater.

i would say it is

i thinking chemical change