Why is magnetism an example of a non-contact force? 1)Magnetic fields can push or pull objects.

2)Magnets can hold materials in place.

3)Magnetic fields are created by moving electrons.

4)Electrical fields can be attractive or repulsive.

Look at the following answer choices and determine which belongs in the both category. testable, can be disproven explains natural phenomena, has evidence to support it prediction, tentative, one or more scientists working together well established, many different scientists working independently, highly reliable

Which two factors contributed to creating a global culture? the creation of the united nations improvement in telecommunications health issues such as the ebola virus increased opportunities for global travel

Glycogen is an energy-storage molecule in humans. a hormone that is called insulin controls the storage of glycogen in the liver. insulin is made up of amino acids.