About 100 Westford Academy seniors participated in community service activities earlier this month. On June 3 and 4, the students rolled up their sleeves for Habitat for Humanity and the local Parks and Recreation Department, according to Town Manager Jodi Ross. During this year’s community service activities, students also partnered for the first time with the Westford Litter League Green Team. The organization was started by a local resident in 2000, and today it is coordinated by the town Highway Department and Recycling Commission. Each week between April and October, Litter League volunteers donate their time to pick up trash on Westford’s roads. Sporting bright orange vests, the students followed their example and cleared streets throughout town of trash and discarded recyclable items.