Interest groups play a significant role in shaping legislation by lobbying policymakers, raising public awareness, and advocating for specific issues or sectors. These groups represent diverse interests, from environmental protection to business interests, and often provide expertise and information to lawmakers. By mobilizing constituents and conducting grassroots campaigns, interest groups can influence public opinion and legislative agendas. Their activities provide valuable insights during the law-making process, ensuring that various perspectives are considered in shaping effective and equitable policies.