The atmosphere is composed primarily of nitrogen, oxygen, and water vapor. It protects the Earth and is divided into five layers - the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. Weather occurs in the troposphere and describes current atmospheric conditions like temperature, wind and precipitation. Climate is the average weather conditions over time for a particular region and is influenced by factors such as latitude, proximity to bodies of water, altitude, and terrain.

1. SOCIAL SCIENCE/ 4th LEVEL
UNIT 1 – THE ATMOSPHERE
THE ATMOSPHERE
The atmosphere is the layer of air that covers the Earth. It is mainly
composed of nitrogen, oxygen, watwer vapour and other gases.
The atmosphere protects the Earth.
THE LAYERS OF THE ATMOSPHERE
• TROPOSPHERE
• STRATOSPHERE
• MESOSPHERE
• THERMOSPHERE
• EXOSPHERE
WEATHER
Weather is the state of the atmosphere at a certain time and place.
Atmospheric phenomena (rain, wind, snow, etc.) that determine the
weather take place in the troposphere.
To know the weather, we use meteorolgical instruments
CLIMATE
Climate is the average temperature and precipitation in a specific ar
Climate depends on various factors, such as latitude, distance from the
sea, altitude and relief.
Climate influences how we live, the types of houses that we build, the
clothes people wear, the food we eat, etc.