1. Ecology: This is the study of how organisms interact with each other and their environment. It examines the distribution and abundance of organisms, and the factors that influence these patterns. Ecology is fundamental to understanding environmental issues, as it helps us understand how ecosystems function and how human activities impact them.
2. Environmental Engineering: This discipline focuses on the design, construction, and operation of systems that protect human health and the environment. Environmental engineers work on projects such as water treatment, waste management, pollution control, and sustainable development. They apply engineering principles to solve environmental problems and promote sustainable practices.