Formation of Earths Atmosphere How was the Earth
- Slides: 10
Formation of Earth’s Atmosphere
How was the Earth formed? - Geosphere (rock) Hydrosphere (ocean) Atmosphere (ozone) Biosphere (life)
Earth's Early Atmosphere
NBpg. 65 Slide 1 of 4 Formation of Earth: Atmosphere EQ: Explain how Earth’s atmosphere formed and changed. Atmosphere: The gas envelope that extends from the ocean, land, and ice-covered surface of a planet outward into space. The density of the atmosphere decreases outward, because the gravitational attraction of the planet, which pulls the gases and particles inward, is greatest close to the surface.
NBpg. 65 Slide 2 of 3 Formation of Earth: Atmosphere Primordial Atmosphere: Developed by venting during the original formation of the planet: - Water vapor (H 2 O) - Carbon dioxide (CO 2) - Hydrogen (H 2) - Carbon monoxide (CO) - Nitrogen (N 2) - Ammonia (NH 3) - Methane (CH 4) - Traces of other substances. Approximately 85% of volcanic emissions are in the form of water vapor. (In contrast, carbon dioxide is about 10%)
NBpg. 65 Slide 3 of 3 Formation of Earth: Atmosphere Current Atmosphere: Once organisms developed the capability for photosynthesis, oxygen was produced in large quantities creating the ozone layer. - Nitrogen (N 2), 78% - Oxygen (O 2), 21% - Argon (A), 1% - Water (H 20), ~0 - 4% - Carbon dioxide (CO 2), 0. 04% - Methane (CH 4) and other trace elements Photosynthesis arose about 2 billion years ago. Previously oxygen was produced in limited quantities
Formation of Earth: Atmosphere: DLCC NBpg. 64
- Earths early atmosphere contained
- Atmospheric definition
- Earth's atmosphere composition
- The atmosphere protects earth from
- The atmosphere protects earth from
- Earth surface atmosphere
- Atmosphere ideas
- Describing earth's atmosphere lesson 1 answer key
- What is the earth's atmosphere made of
- Earth’s atmosphere
- Earth atmosphere ppt