Atmosphere Around You PDF
Document Details
Uploaded by JawDroppingPansy
GES
Tags
Summary
This document provides a presentation about the layers of the Earth's atmosphere and the heating of the Earth. It describes factors influencing the atmosphere, such as the water cycle and the movement of air. The document also discusses phenomena such as air pressure, and the temperatures of the different atmospheric layers.
Full Transcript
The Atmosphere Around You Atmosphere it is thin envelope of gases that surround the planet Atmosphere protect from harmful radiation and keep planet temperature within a range that allow life exist atmosphere acts like a coat Structure of Atmosphere It consist of Mixture gases Nitrogen 78% Oxygen...
The Atmosphere Around You Atmosphere it is thin envelope of gases that surround the planet Atmosphere protect from harmful radiation and keep planet temperature within a range that allow life exist atmosphere acts like a coat Structure of Atmosphere It consist of Mixture gases Nitrogen 78% Oxygen 21% Helium Carbon dioxide 1% Water vapor …………... Most of gas atmosphere near to the earth Burning of fuel increases Co2 Dust and ash might block sun rays affecting the plant life Water vapor in atmosphere At desert nearly to (0 %) At humid tropics reach (4%) Air pressure It is a weight of air column exerts a force on you Barometer used to measuring the air pressure Altitude the distance above sea level When the altitude increases the air pressure decreases Layers of atmosphere It is divided into 4 layers 1)Troposphere Location: The closest layer to Earth, extending up to about 10 km Weather : clouds, rain ,wind, snow Temperature: Gets colder as you go higher. The Stratosphere: the Ozone Layer Location: 10 – 50 Km Sun Protector: This layer contains the ozone layer which shields us from harmful ultraviolet (UV) rays from the sun. Temperature Surprise: the temperature actually increases with altitude increases The Mesosphere: The Coldest Place on Earth! Location: 50 – 85 Km This is where meteors burn due to the friction The Thermosphere Location: Above the mesosphere, 85 km and above temperatures reach up 1800°C Energy in the atmosphere The sun provide most of energy to atmosphere This energy drive the process of the atmosphere Such as water cycle and movement of air the solar energy absorbed and stored by the atmosphere Causes earth surface temperature to remain relatively stable or constant Heating of earth Transfer of heat Conduction Convection Radiation Air heated by solar energy Hot air move up Cold air move down This movement called wind wind moves from higher pressure to lower pressure
