Documents A few definitions Light year (ly): Distance light travels in one years (about 10 trillion km)...

Slide 1 Slide 2 A few definitions Light year (ly): Distance light travels in one years (about 10 trillion km) Andromeda Galaxy – 2.4 million light years away. Slide 3 A…

Documents Introduction We will consider all spheres of Earth Lithosphere – Rock – Geology Atmosphere –.....

Introduction We will consider all spheres of Earth Lithosphere â Rock â Geology Atmosphere â Air - Meteorology & Climatology Hydrosphere â Water â Oceanography Biosphere…