This is related to environmental science and public health as it is concerned with the factors of the environment affecting human health.

This is the old or unused equipment, appliances and gadgets.

This is the permanent removal of large areas of forest, usually to transform the natural ecosystem in the area to serve another purpose.

This is a short-term event that occurs within 6 hours of a causative event and often within 2 hours of the start of high intensity rainfall.

This is the greatest challenges for humanity in the twenty-first century.

This is the principal health agency in the Philippines.