Environment-related opportunities for service include:
a. lake cleanup
b. little league
c. voter registration drives
d. labor unions

Environment related opportunities for service include lake cleanup. The correct option among all the options that are given in the question is the first option or option "a". There are several other types of services also related to environment. I hope that this answer has come to your help.

Answer (datum point);

Answer light in color; silica-rich;