State which of the fol k,ku u4lca3*is s5: kwa,gbx3lowing is not a greenhouse gas.

  State the layer of the atmosphere in which clouds ford1av* rhypt-)j) i;q .d9b. jx 4biowbm.

  Figure: Levels of oxygen in+ugau5pa04v v/ pzu7nnxi +p 8 hrhv6* 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 ecosystems, including in the atmo2exh+1 vm3bou4imlt 6sphere as a gaseoem2x+3iv6m1o ulb4 h tus form.

State which element is not found in the atmosphere.

  Determine which of the following greenhouse gases is correctly paired with 7 yr e+766lr,w2ey z*xc,yuu) pvndl.q ( swasits sourc6ryy,w p)l re*( n v.yusasz c76+qude2,x7wle.

  State which is not true rh(pim3 s9nn 2uegarding greenhouse gases.

  List the main greenhouse gashos9ugu+g au )qk)0u8 es.

  Identify the pie chart that most accurately represents the composition44jbj r tgdfur)+t5 0n of the atmosphere. tbf+d4r4 )r0tg5nujj

  Determine which of the following statements is not tr1:-fsvqgi0 (ciueo lgo /v70eue.

  Figure: Levels of oxygen in Earth’s atmosphere;v7u/gdv3 28bvs orzi4bm n- p

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 atmos;.-plx03wik3s yzh h wphere

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

  Figure - Layers of the atmo9w4hb 1i6r nai.qslpn9g* q5wsphere

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 following st+ :u8x6ltrtrrw y 1y4 g1blk.gatements 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 correct appro8o6tsj r.q+5velhuo 3ximate compositis5oh6r8+q euj.ovl 3ton of the Atmosphere with respect to the three main gasses shown:

  Identify which of the followingo2 ps 7fqq7g h7;2hk nt9huw4t is not true about atmospheric carbon dioxide levels over the lasthnw g9727hoqh7ks tpq2t; uf 4 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 surfacm9qifs2c86k 02javsb es would have the highest albedo.