Answer:
Resistive electromagnets, which are cheaper and easier to maintain than superconducting magnets and these are far less powerful,use more energy and require a cooling system
hope it helps
Answer:
3.) Pumice
Explanation:
"Pumice is widely used as an abrasive in soaps and cleaners. It is considered one of the softest abrasives on earth."
The correct answer would be : erosion
I hope that this helps you !
Answer:
A nation that typically has higher average income, slow population growth, and many different types of economic activity
Explanation:
This is because a developed nation would be a nation that has been founded for more than 300 years (I think). They would have more population and economic activity due to the fact that it has been founded for a very long time. Meaning that growth and economic activity have been going on for centuries.