State which of the following is not a greenho;v53 ion+an dyk(td r9use gas.

  State the layer of the atmoszipcw6+ evwce: 0mo7 (phere in which clouds form.

  Figure: Levels of oxygen in Earqmd+ :7hg hl7ith’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, incwr/ 4 sajl;pk4luding in the atmosphere as a gaseous 4srpa4w/ljk; form.

State which element is not found in the atmosphere.

  Determine which of the following greenhouse gases is correctly paired w*ap4+ee kt:yd 89xbj2nitid ka3.f. rith its source. 4t3eb r *dtk.adini.8p9f:jak2+xe y

  State which is not true regardin6jpbe)bf/ 4ue g greenhouse gases.

  List the main greenhouse gases.ytu,p fdk icn7xs7(1 0

  Identify the pie chart that most accurately reph-rn(lmo*f fv9 qf:npkl(2s7 resents the composition of the atmrksn9f-7lmqf*2lp( nv :of h(osphere.

  Determine which of the following statements is not true.7q c2nx;n+nz-z ij3,skfoja -

  Figure: Levels of oxy23ixn g,6fm okx- +7e mwy/ttggen 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+ y) ec7khhw/g6swx. ae

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

  Figure - Layers of t ;c9vmm92,qr yjm+dqyhe 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 following stateme6gqhvp 83gp( hnts 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 approxi/1pp ) z*snxlgmate composition of th*pl1 )nx/zpgs e Atmosphere with respect to the three main gasses shown:

  Identify which of the following is not true about atmospheric carbon dioxide l(ug5 rlad2l/k evels over the last 45g /ukdl(r2al 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 would has;ljh,y 1t. j4p et0 wpqox/v)ve the highest albedo.