An electromagnet is the most powerful type of magnet there is It is a magnet with a current running through it that can be turned on and off Why might it be useful to be able to turn the electromagnet on and off?
O to reduce wearing out of the magnet over time
O to control the strength of the magnet
O to not waste electricity
O to latch onto and let go of objects

the major pests we deal with are insects, weeds and fungal diseases. a pesticide is a product, whether organic or chemical, used to kill the target pest. there are other techniques gardeners should use that can prevent the severe infestations that make the use of pesticides necessary

you gotta add the following molecules so we can give u an answer

explanation:

answer7,570,82356 cubic centimeters;

plasma - state of matter made up of electrically charged particles