Answer:
The group members would have only minimal social relationships with each other.
Explanation:
This is an example of a secondary group. In a secondary group, members are usually united by a particular task (in this case, taking care of the environment). Moreover, this task tends to be action-oriented and not particularly emotional. They are generally pragmatic and instrumental. Because of this, members tend to only share experiences that relate to such a goal, as opposed to having complex or intimate social relationships.