Malik built a simple electromagnet with copper wire, an iron bolt, and a 1.5-volt battery. The electromagnet was
able to lift a paper clip from 3 centimeters away. Select all the ways Malik can improve the strength of his
electromagnet

He can use a longer piece of wire that wraps more times around the bolt.

He can reverse the orientation of the battery.

He can replace the 1.5-volt battery with a battery of higher voltage.

He can replace the iron rod with a wooden rod

He can add a switch between the battery and the iron bolt.

(select all that apply)

All the ways Malik can improve the strength of his electromagnet are -

He can use a longer piece of wire that wraps more times around the bolt.He can replace the 1.5-volt battery with a battery of higher voltage

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current that consists of wire wound into a coil.

To increase an electromagnet strength following things can be done:

take a longer wire that wraps around the nail or rod few more timesincrease the current by taking high voltage batterytake a thick or strong copper wire

Thus,

All the ways Malik can improve the strength of his electromagnet are -

He can use a longer piece of wire that wraps more times around the bolt.He can replace the 1.5-volt battery with a battery of higher voltage

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Environmental science studies the interactions between the physical, chemical, and biological components of the environment, including their effects on all types of organisms. earth science (also known as geoscience), is an inclusive term for all sciences related to earth (geology, meteorology, oceanogr maphy, etc).  although environmental and earth science cover essentially the same material, environmental science places greater emphasis on the biological realm, while earth science places greater emphasis on the physical realm.    environmental and earth science study the interactions of four major systems or “spheres” (figure 8.6).  the  geosphere  consists of the core, mantle and crust of the earth.the  atmosphere  contains all of the earth’s air and is divided into troposphere, stratosphere, mesosphere, thermosphere and ionosphere.the  hydrosphere  contains all of the solid, liquid and gaseous water on earth, extending from the depths of the sea to the upper reaches of the troposphere where water is found.  ninety-seven percent of the hydrosphere is found in salty oceans, and the remainder is found as vapor or droplets in the atmosphere and as liquid in ground water, lakes, rivers, glaciers and snowfields.  the  biosphere  is the collection of all earth’s life forms, distributed in major life zones known as biomes:   tundra, boreal forest, temperate deciduous forest, temperate grassland, desert, savannah, tropical rainforest, chaparral, freshwater, and marine.although the four systems have their unique identities, there is substantial interaction between them.  environmental scientists study the effects of events in one sphere on the other spheres. for example, a volcanic eruption in the geosphere may cause profound direct and indirect effects on the hydrosphere, atmosphere and biosphere as follows: example 1 (volcano)    on may 18, 1980, mount saint helens, in the state of washington, erupted.  this event altered the surrounding environment, and provided scientists with an opportunity to study the effects of volcanic eruptions on the geosphere, hydrosphere, atmosphere and biosphere.  such studies are vital because volcanic eruptions will continue to occur, and will have increasing impact on humans as people continue to settle lands closer to dormant volcanoes. the following are but a few of the myriad of interactions resulting from a volcanic