Earth System Sciences

A system can be describe as ?

• a group of interacting or interrelated things working together as parts of a group or network to achieve a common goal

• refers to earth’s interacting physical, chemical and biological processes, planet’s natural cycles such as water, carbon, nitrogen and sulphur cycles and deep earth processes but can be subdivided into four main components.

• none of the following

Earth's System can be describe as ?

• refers to earth’s interacting physical, chemical and biological processes, planet’s natural cycles such as water, carbon, nitrogen and sulphur cycles and deep earth processes but can be subdivided into four main components.

• a group of interacting or interrelated things working together as parts of a group or network to achieve a common goal

• none of the following

A closed system is one in which no substantial amount of matter crosses its boundaries, although energy can go in and out of a closed system. The Earth system is essentially closed to the input or output of matter.

• true

• false

An open system is one where both energy and matter move freely across subsystem (hydrosphere, biosphere, atmosphere and lithosphere) boundaries as inputs and outputs.

• true

• false

A water cycle is an example of a?

• closed system

• open system

Stream is an example of ?

• open system

• closed system

Lithosphere can be described as

• this consists of those parts of the earth system composed of water in its liquid, gaseous (vapour) and solid (ice) phases.

• this is the gaseous layer surrounding the earth and held to its surface by gravity.

• this is the part of the planet composed of rock and minerals; it includes the solid crust, the molten mantle and the liquid and solid parts of the earth's core