State which of the following is notrafq7zqp f h;8 .ryl23 a greenhouse gas.

  State the layer of the atmosphere in which clouds 67z 2j:jc njb0rmi7zqphl(h+form.

  Figure: Levels of oxygen in Earth’s atmosphere yqqmnd8+ bj(a0tv s26


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 atmosp93,mt rt qyrm2here as a gaseous form 2t,r9ym tmqr3.

State which element is not found in the atmosphere.

  Determine which of the following greenhouse gases is correctly pairedn8fd 7 1tajy*2ybdfd; with its sonjb7d d;1ya*ft dy28 furce.

  State which is not true regarding greenhouse gasesxca;47g6-bftmi7 q ni.

  List the main greenhouse ga h.wei-j/nq-+ lb zqt3ses.

  Identify the pie chart that most accurately represents the com .k+8+mbj+ (yk9hdu9jicl5bed6 sn bf position of the atmosphere. 6(m+k c h5s n+jud9e kfyj8.9+bbilbd

  Determine which of the following stateme mdt-jmtxd752*8ke nxh* qv 2qnts is not true.

  Figure: Levels of oxygen in Earl hneg(95/iy0ny jw1vth’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 atmospherhye(m 4 n-9j9thbhk,svm2)pme

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

  Figure - Layers of the arqr2 5wj; n8uptmosphere

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 statements describes the troposphere. 6p(0d go4f beq
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 kd k7u+l1w;bb the correct approximate composition of the Atmosphere with respect to the three main gassedk +7buw klb1;s shown:

  Identify which of the follo29 fjmp0wgan,wing is not true about atmospheric carbon dioxide levels gf p,0m2n jwa9over 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 wy*4o he;u+azvdg2x,p ould have the highest albedo.