This is a poor use of the Communication Channel. These are the physical instruments that help in communication such as writing, email or cell phone. This channel facilitates communication, widens it and allows the message to be transmitted more quickly. In this case, the use is poor because the note is very short and this type of messages is better to give them face to face.
3) producers
4) decomposers
An independent contractor is the correct answer.
Independent contractors are businesses, corporations or people who provide some kind of goods or services to another person or organization under a contract between them. In order for a person to be considered self-employed, or an independent contractor, he/she must be free from the client's control, be able to control the manner and methods to accomplish the end-result, and be responsible for the delivery of the good and service under the terms of the contract.
The east coast of the United States is affected mainly by the Gulf Stream current, which brings warm water from the tropics into higher latitudes. The warm current flows north along the coast towards Maine, before veering northeast out toward England.
Hope this helps