Some types of pollution are hard to
control because they are a global
problem. This means that an action in
one part of the world has an impact in
another part of the world.
True
False

Models are non-visual ways of coummincating how someone thinks about something in the natural world

During an experiment, readings for blood pressure in a persons body were found to be constant . however , when he measured by a different blood pressure cuff , the readings differed by 15 points for each reading. this difference indicates that the results are

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water