State which of the follow0ebr e5r*3vviing is not a greenhouse gas.

  State the layer of the atmosphere in0 +xr5 henu0cl3xp+ mu which clouds form.

  Figure: Levels of oxygen iw10q dneus5 rw.(5u4b7ksc zu n 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.

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

  Nutrients are constantly cycled in ecosysteazc.b2c) /9pk4dq c iems, including in the atmosphere as a gaseous form. c9ikc.pa qz cb) 2/ed4

State which element is not found in the atmosphere.

  Determine which of the following4j;yt oeknij/ ldw *90e:w/z:lr uj* j greenhouse gases is correctly paired with its sourc dzyr*/*kiel jjjlw/jnt :u;wo04e9:e.

  State which is not true regarding gree*8oe-rw) k tgxbskq ,ipc2b,(nhouse gases.

  List the main greenhouse gasestn +w v3i/w(o26kdra i.

  Identify the pie chart that most accurately represenj7d5l4 qx9fxnts the composition of the atmosphere. 7d5 9nqfxxl j4

  Determine which of the follflkk mvv31 tjd5,7/s0j celjr 9ho (9fowing statements is not true.

  Figure: Levels of oxygen inn*i i*/n xnp7;gw6fzn 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 atmosphvjuyb 4 pwj6 k:.vd5)rere

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

  Figure - Layers of the 6 kt28azv/c:ao8-cd- rrwuto atmosphere

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 fos 6zw(ken.rz (llowing 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 hhofa+lciab;u3 ./7 rwo /z.pcorrect approximate composition of the Atmosphere with respect to the three main gasses co3/h7bfow+azp lrh/.a ;i u.shown:

  Identify which of the following is not true about atmospheric carbon dioxi ,.s4xoxorzt*mi s)wx6f-z)oaq c64cde levels oa,6.4xzxoz)- qix)4tmors foscw6c * ver the last 4 billion years.

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 following surfaces wouzxx oyv 0l1f)o ;qu+/xld have the highest albedo.