Exam was piss easy... 4th in the year! haha out of liek 20 lol. Ive got the exam here, heres the biggest questions asked:
U know what since i forgot to write my notes down ill give you questoins and answers and marks cos u deserve it:
Kay here are the main ones
Q12 c). Describe the importance of the role of ozone for the development of life during the Phanerzoic eon. (2marks)
A. The Ozone blocked harmful UV rays from the sun. As a result, life began to become terrestrial. For example, Stromatolites could live out of water.
Simple, easy, 2/2marks.
Q14. a) State what a Banded Iron Formation is. (1mark)
A. A banded iron formation (BIF) is a layer of sediment (originally underwater) that contains high levels of iron oxide. 1/1
Q14. c) Analyse the relationship between the appearence of Cyanobacteria in the fossil record and the formation of BIF's. (3marks)
A. Cyanobacteria produces oxygen. Iron Oxide is caused by the Oxygen connecting with Iron Atoms. Therefore, Oxygen was abundant at the time of the BIF, giving an indication of what time the world was abundant in oxygen by observing the sedimentary layers. 3/3
Q16. Deduce the advantages that Vertebrae had over the early Ediacara. (4marks)
A. Hard parts gave protection against predators and provided mobilization, allowing fauna to spread out its populatoin, the progression from sea to land was an advantage because organisms could access more food like oxygen, UV Rays and other food. 4/4
Q18. Explain the difference between relative and absolute dating (3marks)
Cant believe i got full markz fo this one i used my superior ancient history skills to bullshit and something stuck! haha
A. Relative dating is classification via class. Absolute dating involves processes like Radio-Carbon (C-14) Dating, which gives exact dates to ages. 3/3
--------------------
You'll probably get like a few tables and diagrams, all you have to do is process information you'd have to be missing some form of vital organ to get the questions wrong.
Multiple choice was easy they had questions like:
1. Over geological time, which of thefollowing is best explained by the plate tectonic supercycle.
a) Cyclical patterns of earthquakes
b) Formation and breakup of supercontinents
c) Mass extinctions and explosions in the number of species
d) Cycling of continental crust from subduction zones to mid-ocean ridges.
Of course the correct answer was C.
umm..lets find a harder multi choice question..
okay this was the hardest..in retrospect its one of the easiest ive seen lol
5.Which of the following best describes the organisms that formed the first known stromatolites?
a) Layer-forming bacteria that lived in the Hadean
b) Sediment-trapping cyanobacteria that lived in the Archaen
c) Mound-building filamentous green algae that lived in the Proterozoic
d) Sediment-trapping primitive flat worms that lived in the Cambrian
Answer was B..only because i saw the word cyanobacteria and thats what stromatolites are lolz.
You'll do awesome it will be so easy and good luck!!
Sorry took so long to reply just been studying the manner in which clowns enter volkswagons for a few days.
I hope i helped u
im not as cool and smart as u so i try my best.
I remember u saying ur exams this week so good luck girl !!!!
