Sayans

• EQUATOR

  It is called as the great circle on the globe.
• Globe

  Is a three dimensional representation of the Earth
• Lines of latitude or parallels

  Divides the Earth into 180 equal portions from north to south
• Lines of Latitude or Parallels

  The reference is the equator which divides Earth into two hemispheres, the North Hemisphere and the South Hemisphere.
• Lines of Longitude or Meridians

  Perpendicular to the equator.

  These lines divide Earth into 360 equal portions.

  The prime meridian is at the 0° longitude with its opposite being the International Date Line at 180°.
• Degree

  It is the unit used in measuring the latitude of the globe
• Nonrenewable Natural Resources

  These are things that can run out or be used up which means that there is only a limited supply or available only in limited amount
• Nonrenewable Resources

  Examples are fossil fuels such as gas, oil, minerals and coal.
• Nonrenewable Resources

  They usually come from the ground.
• Solar Energy

  energy from the sun
• Geothermal Energy

  harnessed from heat within the Earth
• Hydropower

  derived from fast-flowing water
• Wind Energy

  generated from wind
• Biomass

  energy from decomposition of organic wastes
• Renewable Natural Resources

  They are called renewable because they can grow again and never run out.
• Renewable Resources

  Examples are water, wind, wood, sun and energy wave.
• The Two Types of Natural Resources:

  Renewable Natural Resources

  Nonrenewable Natural Resources
• The 5 Layers of The Atmosphere are:

  Troposphere

  Stratosphere

  Mesosphere

  Thermosphere

  Exosphere
• Troposphere

  "Tropos" means change.
• Troposphere

  This layer gets its name from the weather that is constantly changing.
• Troposphere

  Almost all weather changes and patterns happen in this layer.
• Troposphere

  The temperature change in this layer is mainly due to the heat of Earth's surface.
• Troposphere

  The temperature just above the ground is hotter than the temperature high above.
• Troposphere

  Weather occurs in the troposphere because this layer contains most of the water vapor (weather sphere).
• Troposphere

  It is where all the meteorological activities happen in this area
• Troposphere

  Temperature decreases as Altitude Increases
• Stratosphere

  "Strat" means layer.
• Stratosphere

  Ozone is a form of oxygen which absorbs the ultraviolet (UV) rays from the sun, which eventually releases heat.
• Stratosphere

  This is also the location where aircrafts fly because it is very stable in comparison to the troposphere.
• Stratosphere

  It begins at about 10 km above the earth's surface and reaches an altitude of around 30 km.
• Stratosphere

  It is in this layer where we find the ozone layer.
• Stratosphere

  Without the ozone layer, we would receive harmful amounts of ultraviolet rays which can cause skin cancer
• Mesosphere

  "Meso" means middle.
• Mesosphere

  It also has a thin layer of air which is still enough to decelerate meteors rushing towards Earth.
• Mesosphere

  This thin layer of air adds friction to meteoroids which becomes meteors producing a burning tail and seen as shooting stars.
• Mesosphere

  Since it is far away from the ground, the heating from land and water surface has no effect on this layer.
• Troposphere

  About 8 km to 14.5 km in height
• Troposphere

  Temperature decreases 6.5°C to about -60 °C
• Troposphere

  Cloud formation and weather occur.
• Stratosphere

  About 50km in height