Answer:
True. However, those are not two types of discussion groups, but only one.
Explanation:
Online forums possess a tree-like structure. A forum can contain several sub-forums discussing topics somehow related to the original subject.
Forum conversations differ from chat, because messages are typically longer, and are stored for longer. Each conversation in an online forum is called a "thread".
A bulletin board is a<em> type </em>of online forum in which its participants post questions to a related topic and other members try to provide the answer to that question. The answer is open to discussion and other members are free to intervene and correct the answer, if needed. A moderator is usually present, to ensure ethical behaviour and encourage the participants.
The most important producer in both freshwater and marine ecosystems<span> is phytoplankton.</span>
Back seat of any vehicle.
The following are the best five answers for ways to conserve fuel:
-Ride a bike to work instead of drive.
-Call a store to see if they have what you want to buy.
-Share a ride with someone else.
-Take a bus instead of drive.
-Avoid maintaining your vehicle unless it's absolutely necessary.
