1aii) Know the differences between stratified, systematic and random sampling method.
1c) MUST use information from DATA eg %
2) Oktas : a unit used in expressing the extent of cloud cover, equal to one eighth of the sky.
aii) Stevenson screen
aiii) Diurnal = Highest minus lowest temperature
- use data from both Fig. 3 and 4.
- Inverse = something that is the opposite or reverse of something else.
c) anomalies = data that is out of the normal
3b) disposable income = income remaining after deduction of taxes and social security charges, available to be spent or saved as one wishes.
Section C
b) subduct = the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
d) Surtsey volcano
e) Block mountains formation = importance of TENSIONAL forces pulling apart
2nd method: Compressional forces pushes block mountains upwards, forms fault lines , causes the sides to rise upwards, corners becomes eroded to form BM (Demonstration)
5)
a) Relief : terrain (describe the gradient of the slopes)
- Use contour lines, closer lines refer to steeper slopes. gentles lines refer to gradient slopes
b) viscosity = stickiness of lava, (type of lava flow)
c) shortwave radiation =
Shortwave radiation (SW) is radiant energy with wavelengths in the visible (VIS), near-ultraviolet (UV), and near-infrared (NIR) spectra.
The sun emits shortwave radiation because it is extremely hot and has a lot of energy to give off. Oncein the Earth's atmosphere, clouds and the surface absorb the solar energy. The ground heats up and re-emits energy as longwave radiation in the form of infrared rays.
5d) lines of latitude
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