ESS 4

• Set of interconnected components interacting to create a unified whole.

  System
• 4 subsystems of the Earth:

  • Atmosphere
  • Biosphere
  • Lithosphere
  • Hydrosphere
• A thin gaseous layer that serves as the Earth's protection from UV rays.

  Atmosphere
• Atmosphere is composed of:

  • 78% Nitrogen
  • 21% Oxygen
  • 1% Argon
• It includes the rocks of the crust and mantle, the metallic liquid outer core, and the solid metallic inner core.

  Lithosphere
• Layers of the Lithosphere:

  A) Crust

  B) Mantle

  C) Outer core

  D) Inner core

  
• It is the set of all life forms on Earth. It covers all ecosystems—from the soil to the rainforest, from mangroves to coral reefs, and from the plankton-rich ocean surface to the deep sea.

  Biosphere
• Layers of the Lithosphere

  A) Crust

  B) Mantle

  C) Outer core

  D) Inner core

  
• It is composed of all the water on earth in any form.

  Hydrosphere
• Earth is covered by _ of water.

  70%
• It is the evaporation of water through minute pores or Stomata, in the leaves of plants.

  
  

  Transpiration
• It is the phase change of matter from solid to gas without becoming liquid.

  Sublimation
• A part of the water cycle wherein matters transitions directly from a gaseous state into a solid state without passing through an intermediate liquid phase.

  Deposition
• It is the process through which the physical state of matter changes from the gaseous phase into the liquid phase.

  Condensation
• True or false:

  Condensation occurs when water vapour (gaseous form) in the air changes into liquid water when it comes in contact with a cooler surface.

  True
• It is also known as the hydrologic cycle.

  Water cycle
• Water that falls from the Atmosphere to the Earth's surface.

  Precipitation
• Much of the Hydrosphere is _

  Ocean Water
• It covers all ecosystems.

  Lithosphere