State which of the followvuu9ge **xt z59 xuen+ing is not a greenhouse gas.

  State the layer of the atmosphere in which clouds for(0x qipn hvc(s 3+taxzv7u6/ km.

  Figure: Levels of oxygen in Earth’s atmosphe,dglwc2 w-j1qwr: 8 em 0mip3cre


The Figure shows the maximum and minimum estimates for the oxygen concentration in Earth’s atmosphere since life began on our planet.

Calculate the difference between the maximum estimated oxygen concentration in the atmosphere and the current concentration.

  Nutrients are constantly cycled in ecosystems, including in the atxucv5ph* f 92fmosphere as a gaseous form.c fuxv5 2pfh*9

State which element is not found in the atmosphere.

  Determine which of the following greenhouse gases is correctly paired wit fys l4ld0/*t 3)oetw *tfar7n5uze3 dh its source.*3u) ttse7w0dnf let53a 4*flrzy/od

  State which is not true regarding greenhouse gase.;.f zg gr 3*l;jz/bpr+dcbnbs.

  List the main greenhou03 f)yj4vujt *zx,suose gases.

  Identify the pie chart that most accurately repr: pao +f*b xwvaruu 4ojq*10*p)u:ka yesents the composition of the atu):vrb*y 4 pk1x**0ou :+ apwjqfaau omosphere.

  Determine which of the following statement,v 3*hw5olt zx6 xqv,qs is not true.

  Figure: Levels of oxyge4dm8ta n13z1av0bt t jn in Earth’s atmosphere

The Figure shows the maximum and minimum estimates for the oxygen concentration in Earth’s atmosphere since life began on our planet.
Suggest possible lines of evidence for the data in this graph.

I.
Red iron oxide layers in ancient rocks, showing oxygen caused iron in the oceans to rust
II.
The composition of air bubbles trapped in salt crystals
III.
Models that predict how much oxygen was needed in the atmosphere to support fossilised organisms

  Figure - Layers of the a0 9 s58ypfl-aqvvn-pl tmosphere

Using the figure, identify the altitude range and layer of the ozone layer.

  Figure - Layers of the atmosphewtty3(:xa g9 wre

Use the figure to calculate the change in temperature as you go up from the Earth’s surface to the top of the troposphere.

  State which of the follow+j i nhn),x2(ubst t ;6uh1puoing statements describes the troposphere.
I.
It is the layer where most weather occurs.
II.
It goes from about 10km from the Earth’s surface to about 50km from the Earth's surface.
III.
It contains 50% of the air in the atmosphere.

  Identify which of the following combinations reflects the c)sejaz,u g 41xorrect approximate composition of the ejxsz)u, a 14gAtmosphere with respect to the three main gasses shown:

  Identify which of the following is not true about atmospheric carbon dioxide lev 1d1: : scub aakiltawc895v6vels over the last 4 billion a5wik9ct:8lbuv1 s61a vcd :ayears.

I.
They have fluctuated (moved up and down).
II.
They have been constantly increasing overall.
III.
They have never been higher than they are today.
IV.
They have influenced the temperature of the Earth.

  Determine which of the follozvi9 /fjwbb 85wing surfaces would have the highest albedo.