Which is not a property of magnetic field lines?
a. they can be directly observed.
b. they form complete loops from pole to pole.
c. they never cross.
d. they spread out as they get farther from the magnet.
the subject is science

20 in the formula no3, what does the subscript 3 mean?

Plants are used for so many things. in your house alone, you can probably look around you and see where plants have been used. for this project, you will identify various uses of plants in your home. directions make a list of objects, products, and any other items around your house where plants were involved in the production of the item. you should have a list of at least twenty items. then respond to the following questions: note: your list of objects and the answers following should be at least 200 words in length. what if plants no longer existed on earth? how would your life be different?

How does the nervous system affect the excretory system?