Which of the following is an application of technology which enhances human ability to predict weather changes? A. Microscope B. Telescope C. Stethoscope D. Barometer

Which of the following best describes the economy of africa?

What is found within a ranger tower overlooking a drained lake

People keep spending additional units of a particular resource on a want until their marginal benefit is  decreasing withgreater thanless thannot affected by  their marginal cost.