C. current forms are being depleted faster than they can be naturally replenished. therefore, we must find new forms of renewable energy in case we run out of our current forms.
1. Earth, and its features
2. "Spatial analysis is a type of geographical analysis which seeks to explain patterns of human behavior and its spatial expression in terms of mathematics and geometry, that is, locational analysis", "Examples include nearest neighbor analysis and Thiessen polygons"
3. "the study of the physical features of the earth and its atmosphere, and of human activity as it affects and is affected by these, including the distribution of populations and resources, land use, and industries."
4. physical: study of earth's/nature's features (climate, plate tectonics, etc.), human: study of impact/behavior or humans, how they act and react to/in the physical world, etc.
5. "a diagrammatic representation of an area of land or sea showing physical features, cities, roads, etc."
6. "science or practice of drawing maps"
a thick subsurface layer of soil that remains frozen throughout the year, occurring chiefly in polar regions.
Sum of all angles in a quadrilateral is 360....so x=36
1st angle=4(36)=144
2nd angle=3(36)=108
3rd angle=2(36)=72
4th angle =36
