I think it is WAN (Wide Area Network).
Answer:
Sum = 3
Sum = 9
Sum = 18
Sum = 30
Look at the image for more information.
Answer:
nonrenewable resources
Explanation:
There are primarily two types of resources: renewable and non-renewable. The main difference between the two is that <em>the renewable resources can be replenished</em> while<em> the non-renewable resources cannot be replenished.</em>
Examples of non-renewable resources:<u> coal, oil and natural gas.</u> These are called "fossil fuels." Although they only have a limited supply, most of our human activities are dependent on these fossil fuels, which threatens their depletion.
When you're in a library and you don't want to disturb other people.