State which of the following is not a greenhouse 2 k6gs- bh:vlix u(k-lgas.

  State the layer of the fw+(.h sdp3d zatmosphere in which clouds form.

  Figure: Levels of oxygen in Earth’s atmosp *m:gadn0-fu+eg p51phuw :o qhere


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 ecosyste+k6gr/w d6d(f7 zr 2gzfv e;xvms, including in the atmosphere as a gaseous form.(2gvv ;6 z7/ddzkgwx 6re+fr f

State which element is not found in the atmosphere.

  Determine which of the following greenhouse gases is correctly paipuov3u8q k4/nrw . ae.vj3;*ed yesj; red with its sour jw v dusuqp3e.e o4yjr;ka.38;vn/e* ce.

  State which is not true regardiih/oesm*- g*6p vyah-ng greenhouse gases.

  List the main greenhoub (8dmsorbj9a e 3pb6kge:-e)se gases.

  Identify the pie chart that most accurately represents thp st;riyn ;e5a -kb0)*z pki2fe composition of the atmos*si2; zia0 ;) e-tb5py fkrknpphere.

  Determine which of the following state0 ; 7k+b *svfpgouoav)ments is not true.

  Figure: Levels of oxygen in Ea1nwq rmhxk j4cz(l,p.5(80oyo.nec trth’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 atmsfq pm5 k:6u1; wk2pbubyfy:1osphere

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

  Figure - Layers of the atmosphere mfl hkwzks 3jaa +/w z(/r:46t

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 sta4:s6 bdwp15cgu kh)tktements 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 apprm0/h+qdgovf6egg 8 o.m eut5j4r7 -caoximate composition of tho65o eda7 4g/ trmemgg0+vq-h.u8 c jfe Atmosphere with respect to the three main gasses shown:

  Identify which of the following is not true about atmo-) t:us*ty;j-hvs y bwn m. k;fyex+f3spheric carbon dioxide levels ove.tk+x*h y); n:-ym-fjuwsy; 3es tbvfr 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 foladnsn*4ge c*l6 ok4pr 91cwz1lowing surfaces would have the highest albedo.