Font size
WorksheetsEarth Climate System
Total questions: 20
Worksheet time: 19mins
When the Earth's orbit has a higher eccentricity, the planet's surface receives 20 to 30 percent more solar radiation. This happens
At perihelion
At aphelion
At superhelion
At epihelion
We experience ----------------because of the tilt of the Earth's axis relative to the plane of its orbit .
climate change
seasons
heat wave
Extreme climate
Identify the processes within our atmosphere that can force changes in climate ?
Volcanic eruption
Meteor attacks
Oceanic current changes
Global warming
Sea level rise
Earth experienced it's most recent ice ages during the-------------- epoch,
(a)
A climate -----------is an indirect, or secondary, change—either positive or negative, that occurs within the climate system in response to a forcing mechanism.
Feedback
Internal Forcing
Impact
Vulnerability
Which of the following events is negative feedback ?
decrease in the solar radiation received by earth
Increase in global temperature
larger amounts of water vapor in the atmosphere
Enhanced greenhouse effect
Name the three Milankovitch cycles
Earth's climate system is made up of the atmosphere, oceans,ice masses ,--------------- and Geo sphere.
(a)
The absorption of ------------- infra-red radiation is particularly important to the energy budget of the Earth's atmosphere
terrestrial
oceanic
Glacial
Atmospheric
Which of the following gases in the atmosphere which absorb the outgoing infra-red radiation are known as greenhouse gases ?
carbon dioxide
water vapour
nitrogen
methane
argon
The change in the global energy balance due to changes in the composition of the atmosphere is known as
Internal forcing
External forcing
Changes in the global energy balance due to variations in the Earth’s orbit around the Sun
Internal Forcing
External Forcing
Greenhouse effect
Climate feedback
Eruption of Mount Pinatubo Volcano is an example of
internal climate forcing
External climate forcing
Climate forcing
Climate feedback
The Milankovitch Cycles operate over thousands of years whereas volcanic eruptions change climate over at most 2 to 3 years. Climate change due to man-made emissions of greenhouse gases has raised fears about future global warming over the next --------------years
(a)
An atmospheric sink is a point or location where the gas is ------------ from the atmosphere
(a)
Nitrous oxide is naturally produced by oceans and rain forests.
true
false
The protocol that limits use or emission of CFC is
Montreal
Paris
Kyoto
Stockholm
Climate is the long-term average of weather, typically averaged over a period of 30 years.Some of the meteorological variables that are commonly measured are
temperature,
Pressure
Volume
humidity
precipitation
Earth ___________ is primarily caused by the gravity of the sun and moon pulling on Earth's equatorial bulges.
Precession
tilt
eccentricity
obliquity
Earth's axis has been pointed north towards the North Star. The north star before 5000 years was
Polaris
Thubin
Vega
pollux
