A meander is best described as a bend or curve in a stream channel.
There are many ways to measure distance between Perth and Ireland.
First of all, you should know what kind of distance you want to measure: absolute or relative? this means wither it is in a straight line (which might not be suitable for actually doing it in terms of traveling), or relative, and you would be considering possible routes (boat, plane..).
Secondly, you must choose the point in Ireland.
You can use some online tools that help you with measuring distances. An example is:
https://www.freemaptools.com/how-far-is-it-between-Belfast_Northern-Ireland-and-Perth_Australia.htm
You can then change the cities.
Hope this helps.
<span><span>Environmental determinism: the notion that the physical environment has a massive and often controlling (and perhaps never-changing and gene rationally stable) affect on human beings, in essence dictating their abilities in all realms of life and society. </span><span>Possibility or "Cultural determinism", two related notions. Cultural determinism is the stronger of the two, in essence a rejection of the environment as a controlling influence. It claims that cultures are the result of human agency and action, and that the environment is largely a non-issue. Possibility gives more credence to the environmental role, seeing it more from the position of sizable </span><span>influence Probabilistic or "cultural ecology", sometimes seen as a compromise or synthesis of Environmental Determinism and Cultural Determinism, but more rightly seen as a more open-ended treatment of the possibility that sometimes the environment is a key influence, while at other times human actions are more so. Often tied to this discussion is the notion of cost-benefit analysis of any human actions with relationship to the environment.</span></span><span />
I believe the answer would be A. Diffusion is "the spreading of something more widely" Which fits in with this.