State which of the fol ydo1lat 9lr3ulz2, c.lowing is not a greenhouse gas.

  State the layer of the atmosphere in which clndupn( dho86: s,zu-xouds form.

  Figure: Levels of oxy/zr*f*vp-bsjs3l+d/ 9mkl j agen 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.

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 atmosphere as q 2nghc hn 4gja 4:lk3;nbh9-ea ga q:habc9h4hjgg;k4-2l nen 3 nseous form.

State which element is not found in the atmosphere.

  Determine which of the following greenhouse gases is correctly paired with its amj 7zxns( i:m a9qva ,/0tg9nsourc( 9smazvi7an9/ qx,0gjm:nate.

  State which is not true regardinzmo pi3nm2s9u o2a *nn(b(2mwy6 lk:l g greenhouse gases.

  List the main greenhoupyjzn( swql450vn h 36se gases.

  Identify the pie chart that most accurately represents the comp *7kf9teq.oe dosition of the atmospherq eoekt7d.f9* e.

  Determine which of the follow7vm2wwktw l7*ing statements is not true.

  Figure: Levels of oxyge0bodq/4rf1 wo:glvv .2e(wox n 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 atmospher+yk hp( hdl6wtxoc(4(e

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

  Figure - Layers of the atmo2 cozd)pq-2n ;a6bbsk sphere

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 ug2 8 2gefhuywtx5mv;8 bb*-sstatements 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 appo :z p: df8*:bv rjjxu(x*lmq*roximate composition dp(**jf8:lz:murx* qvjxb o: of the Atmosphere with respect to the three main gasses shown:

  Identify which of the following is not true about atmospheric carb to*ewuxt ,p5k3 t/6k5 ioduj-on dioxide levels over the/k63wo pe-kt5u jo5,xu tt*i d 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 followin rizavwc044u 6eg;-vag surfaces would have the highest albedo.