Final answer:
DEFRA is responsible for policies related to the environment, agriculture, fisheries, and rural communities. CHAP is a research institute focusing on understanding and managing ecological processes.
Step-by-step explanation:
DEFRA stands for the Department for Environment, Food and Rural Affairs, which is a government department in the United Kingdom. It is responsible for policies and regulations related to the environment, agriculture, fisheries, and rural communities.
CHAP stands for the Centre for Hydrology and Ecology (CSE), which is a research institute focusing on understanding and managing complex ecological processes. It conducts research on topics such as climate change, biodiversity, and sustainable land use.