Figure 26-1 Wave Fronts and Rays. Figure 26-2 Spherical and Planar Wave Fronts.
Aquatic Ecology II. Thermal Stratification Definition The temperature difference in deep lakes where there are warm summers and cold winters.
The Move to Freer Trade Trade Agreements. A Move to Freer Trade Post-war Re-building (1946). A international financial structure was needed to deal re-building.
The Renaissance / Sonnets. “Renaissance” French word meaning “rebirth” New interest in science, art, literature Great advances in science and education.
Presentation on presentations Penny Ur ETAI, 2010.