'Country borders' presentation slideshows

The Earth-Moon-Sun System

The Earth-Moon-Sun System. Time and Seasons. Measuring time on Earth Around 3000 B.C., the Babylonians devised a method of timekeeping Because their counting methods were based on 60, they divided a circle into 360 parts called degrees

314 views • 21 slides

Geography

Geography. Regionalization by: Mr. Metz. Rationale. Regionalization is important for students so they can identify different regions globally, culturally, physically, locally, and politically.

370 views • 20 slides

Development differences between Central and Eastern European regions by country borders

277 views • 16 slides

Cultural Geography

480 views • 13 slides

Human Health and Air Pollution

Human Health and Air Pollution. 7SCIENCE . How is human health affected by air pollution?. Smog warnings Cities Children and elderly people should stay indoors Athletes train outside Adjust training schedules to avoid smog and dirty air conditions. How dangerous is this dirty air?.

295 views • 7 slides