State which of the following is not a greenh:9 7bodvw4re ;kc/pqioid d4 )ouse gas.

  State the layer of the 2ae.alif6j:z; immcxi h0it 1 1x2tj7 atmosphere in which clouds form.

  Figure: Levels of oxygen in Eartn/ad342q a 8fw1oi1pbb/ bbf rh’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 atmu,a65zg, g,pzq 1jqpdosphere as a gaseous pq jzgdq, 5z,gu,pa16form.

State which element is not found in the atmosphere.

  Determine which of the following greenhouse gases is correctly paired -sk d/oxzh**r7v pze3with its sou-3 rvzh o*pxkz/ es*d7rce.

  State which is not true regardingi.zj:6g0v / yp;javrw greenhouse gases.

  List the main greenhouse gaezx u sn+2lt8v3.9a qwses.

  Identify the pie chart that most accurately represents the composition of thuv1qg c wi-u 8t-+/bbwe atmosphegqb+wc-v ub8uitw /1- re.

  Determine which of t)wh gf z:/7vc jy:e:u(jvao7mhe following statements is not true.

  Figure: Levels of oxygen in Earth’s atmospheyo i/s4v:; *x9rhq-6npdt s vire

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 at -i*q*psx/bas,9veorm/7 xrq afb:x8 mosphere

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

  Figure - Layers of the atmosphere 7sya a1n+c+l02jr*c*b wuuqc

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 319w qxn2yi: ibmuhk: statements 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 followin miph;m v3gtxu *()(9bsa8cdng combinations reflects the correct approximate composition of the Atmosphere with respect to the three main gasses sgi s(h)dp ucx;ntmb(vm 83*a9hown:

  Identify which of the following is not true about atmosp39g fkwqy ,pk+ nlzv83heric carbon dioxide levels over the last 4 billion years.lk+ 8v9z ,3 qyn3pgkfw

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 have the highest a--eqi, jt ffa( ctm3:qqzh30klbedo.