<h2>Answer: D. Rayleigh wave
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Rayleigh waves are a type of surface acoustic wave that causes particles on the surface of solids to travel along an elliptical path in the vertical plane that contains the direction of wave propagation.
These waves include longitudinal (P wave) and transverse (S wave) movements whose amplitude decreases exponentially as the distance from the surface increases.
This means Rayleigh waves are generated by the interference between the P and S waves on the surface of the Earth.
Researchers have developed a program that measures how many planet earths are needed to provide the resources humanity is using. this ecological yardstick is called ecological footprint
The Global Footprint Network promotes the ecological footprint as a way to assess how much nature is needed to sustain a given number of people or an economy. Through an ecological accounting system, it monitors this demand. The accounts compare the biologically productive areas used by people for consumption to the biologically productive areas available in a region or around the world (biocapacity, the productive area that can regenerate what people demand from nature).
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Latitude is the angular distance of a place north or south of the earth's equator, or of a celestial object north or south of the celestial equator, usually expressed in degrees and minutes. and it is horizontal
Answer:
An energy system is a system primarily designed to supply energy-services to end-users.[1]:941 Taking a structural viewpoint, the IPCC Fifth Assessment Report defines an energy system as "all components related to the production, conversion, delivery, and use of energy".[2]:1261 The field of energy economics includes energy markets and treats an energy system as the technical and economic systems that satisfy consumer demand for energy in the forms of heat, fuels, and electricity.[1]:941
The anticlines represents ridges or folds of stratified rocks, with the strata being sloping downwards from the crest.
The synclines represent through or folds of stratified rocks, with the strata being sloping upwards from the axis.
Both of these features are formed in the same manner, by compression. They are also part of a same geological occurrence. Both of them are curved, and seen from side perspective, they are representing one whole, and they look like a wave.
The difference is mainly that the anticlines are always above and they slope downwards, while the synclines are always on the bottom and slope upwards.
