HSC Stuff > HSC Earth and Environmental Science
HSC Earth & Environmental Question Thread
DalvinT:
Hey! I'm so scared that BOSTES will chuck a random introduced specie and ask us to discuss its impact and all! I think they did that in of the past papers about rats or something and their impacts to the environment. And honestly, if I saw that I would've been so "doomed"!! Lmao...
So if that occurs, what strategies can we do to combat those questions OR how should we prepare for these unexcepted questions?
My teacher told us to know about 1-2 well-known introduced animal and plant species.
bowiemily:
--- Quote from: DalvinT on August 09, 2017, 10:20:53 pm ---Hey! I'm so scared that BOSTES will chuck a random introduced specie and ask us to discuss its impact and all! I think they did that in of the past papers about rats or something and their impacts to the environment. And honestly, if I saw that I would've been so "doomed"!! Lmao...
So if that occurs, what strategies can we do to combat those questions OR how should we prepare for these unexcepted questions?
My teacher told us to know about 1-2 well-known introduced animal and plant species.
--- End quote ---
Im quite sure they did this last year, actually. In my own Earth class, we studies four introduced species in depth - I would recommend doing this too. From memory, they were the Northern Pacific Seastar, the Rabbit, Prickly Pear and Salvinia. Covering a scope of different animals/plants gives you an all round understanding of what impacts introduced species can have on an environment, and how they succeed in doing so (ie. both Rabbits and Salvinia reproduce faster than they can be removed, meaning that the local ecosystem is particularly susceptible to them). It is very likely that a random introduced species you get given in an exam will have the same advantages, and so, you can apply what you know about the ones you've studied to the ones given.
DalvinT:
--- Quote from: bowiemily on August 11, 2017, 12:30:11 pm ---Im quite sure they did this last year, actually. In my own Earth class, we studies four introduced species in depth - I would recommend doing this too. From memory, they were the Northern Pacific Seastar, the Rabbit, Prickly Pear and Salvinia. Covering a scope of different animals/plants gives you an all round understanding of what impacts introduced species can have on an environment, and how they succeed in doing so (ie. both Rabbits and Salvinia reproduce faster than they can be removed, meaning that the local ecosystem is particularly susceptible to them). It is very likely that a random introduced species you get given in an exam will have the same advantages, and so, you can apply what you know about the ones you've studied to the ones given.
--- End quote ---
Oh yeah! That's a good idea to do ! :) Thank you so much!! :)
DalvinT:
Hey! I'm confused on the dot point where it is about the growth of the Australian continent.
What is the explanation to how Australia moved away from that deep ocean trench??
bowiemily:
--- Quote from: DalvinT on August 19, 2017, 07:58:08 pm ---Hey! I'm confused on the dot point where it is about the growth of the Australian continent.
What is the explanation to how Australia moved away from that deep ocean trench??
--- End quote ---
Hmmm, I don't think its really that Australia 'moved away' from the trench per say. I think it was more so that the volcanic island arcs contributed to building the Eastern coast, meaning that the oceanic-oceanic subduction zone (which is the deep trench) eventually became a continental- oceanic subduction zone, and then died out.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version