Limestone and climate change Flashcards
Name four different limestone formations
Limestone pavements
Cavern
Stalagmites and stalactites
Swallow hole/pothole
What is Carboniferous limestone
It is made up of calcium carbonate. When the rain water absorbs carbon dioxide it forms carbonic acid
What are the horizontal and vertical line of a limestone pavement before weathering
Horizontal: Bedding planes
Vertical: Joints
What are the slabs and gaps in a limestone pavement called after weathering
Gaps between: Grikes
Slabs: Clints
Why is the Yorkshire Dales so important
The Yorkshire Dales has been a National Park since 1954
What do National Parks do
A) protect landscapes
B) provide access for the public to enjoy the park
Name three land uses in the Yorkshire Dales
Hill sheep farming
Quarrying
Tourism
Other land uses (forestry,military)
Name two conflicts between quarrying Vs tourism
Noise pollution
Visual pollution
Air pollution
How should u answer a describe question
Structure
General trend Point 1 Point 2 Point 3 Point 4
What is a sunspot
Our climate changes because we don’t always revive the same heat from the sun. A greater number of sunspots meany more solar energy is released toward earth. Increase temps
What is a volcanic eruption
Ash and gas from a volcanic eruption from a layer in the atmosphere and stop as much sun reaching the surface of the earth. Decreasing the temps
What is oceanic currents
Hot water is transferred by ocean if currents from the equator to polar regions. Cold water is transferred by oceanic currents from polar regions to the equator. Overtime they change direction and temperature. This can increase or decrease the temps of places
What is the stretch of the orbit
The earths orbit stretches around the sun in a elliptical orbit and therefore at certain times of the year the earth can be closer to the sun. Closer means temps increase. Further away means decrease in temp
What is the tilt of the earth
Change in the angle of the earths tilt alters the amount of solar energy. Nearer means temps increase. Further means temps decrease
What is the wobble of the axis
The axis currently points to the Polaris start to the northern hemisphere. So we have winter in December and summer in July. Every 13,000 years the ‘wobble’ will shift towards the vega star. So the northern hemisphere will have summer in December and winter in July