The Sea to Summit Etherlight XR is a great option for backpackers seeking to strike a solid balance between weight, insulating power, and comfort. The regular size weighs 16.6oz and boasts a 4.1 R ...

Marginal cost measures the cost of producing one more unit of a good. Zero marginal cost occurs when extra units can be produced at no additional cost. Marginal costs include variable costs and can ...

This study aims to assess water quality and its suitability in terms of consumption and irrigation in the Noun Catchment Area (NCA) in the Western Highlands of Cameroon. To achieve this objective, 19 ...