JEG100 Week 1 Definitions: Introduction
and Solar Radiation Question and
answers correctly solved
What is Earth Science? - correct answer ✔Physical geology/plate
tectonics/mountain building
Historical geology/Earth history
Oceanography
Environmental Geosciences
Astronomy / planetary science
Geobiology
Earth System Science - correct answer ✔Lithosphere
Atmosphere
Biosphere
Hydrosphere
What connects these systems?
1. energy
2. materials
3. processes
, The Geosciences Follow the Scientific Method - correct answer ✔Ask
questions, develop hypotheses
Gather data:
Field work: observations and measurements.
Remote sensing, GIS,
Lab work: experiments, and properties of Earth materials• Modelling
Data analysis, evaluate hypotheses based on evidence and Further testing
1. The Earth system - correct answer ✔A system is any assemblage or
combination of interacting components, for example the human body.
The Earth System has four major interacting parts, with flows of matter and
energy between them.
The Two Key Sources of Energy - correct answer ✔Two key sources of
energy fuel the dynamic Earth System:
EXTERNAL ENERGY from solar radiation, which drives the hydrologic cycle
and the circulation of atmosphere and oceans; these, in turn, cause erosion of
the land surface.
INTERNAL ENERGY, which drives volcanism and lithospheric deformation
(plate tectonics) and is from radioactive decay in the Earth's interior.
Geosphere/Lithosphere - correct answer ✔Rocks and sedimentsThe solid
Earth. The upper part of the solid Earth, which interacts with the other
components of the Earth System, is called LITHOSPHERE.
and Solar Radiation Question and
answers correctly solved
What is Earth Science? - correct answer ✔Physical geology/plate
tectonics/mountain building
Historical geology/Earth history
Oceanography
Environmental Geosciences
Astronomy / planetary science
Geobiology
Earth System Science - correct answer ✔Lithosphere
Atmosphere
Biosphere
Hydrosphere
What connects these systems?
1. energy
2. materials
3. processes
, The Geosciences Follow the Scientific Method - correct answer ✔Ask
questions, develop hypotheses
Gather data:
Field work: observations and measurements.
Remote sensing, GIS,
Lab work: experiments, and properties of Earth materials• Modelling
Data analysis, evaluate hypotheses based on evidence and Further testing
1. The Earth system - correct answer ✔A system is any assemblage or
combination of interacting components, for example the human body.
The Earth System has four major interacting parts, with flows of matter and
energy between them.
The Two Key Sources of Energy - correct answer ✔Two key sources of
energy fuel the dynamic Earth System:
EXTERNAL ENERGY from solar radiation, which drives the hydrologic cycle
and the circulation of atmosphere and oceans; these, in turn, cause erosion of
the land surface.
INTERNAL ENERGY, which drives volcanism and lithospheric deformation
(plate tectonics) and is from radioactive decay in the Earth's interior.
Geosphere/Lithosphere - correct answer ✔Rocks and sedimentsThe solid
Earth. The upper part of the solid Earth, which interacts with the other
components of the Earth System, is called LITHOSPHERE.
