State which of the following is not a greenhouse g l.bo4gps7 gi2zb:qc yi+ p67xas.

  State the layer of the atmosphere in which cloudstdw3:ce7wqg gr/(h v04oju k. form.

  Figure: Levels of oxygen in Earth yk5h8v;f2oq gw4 q7kr’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 a axn 94lq2th h06w+5cbv ,sgfb gaseous q9n txh6lfg5 +cb420ba hs,wv form.

State which element is not found in the atmosphere.

  Determine which of the following greenhouse gases is correctl hxmrrq4/ b*w)y paired with its sourc / 4r*mhbqxw)re.

  State which is not true regarding gx18brk +elgr :reenhouse gases.

  List the main greenhou+ts718 fgewxpj x (cf,se gases.

  Identify the pie chart that most accurately represents the compo 80n*xaoqg f*(dn y+nksition of the atmospheren*+*nqa0y fdgxon 8k(.

  Determine which of the following statements isrj 0ux1psxlbx *c+ u:,r*tol 8 not true.

  Figure: Levels of oxygen in Earth’s atmospherejwc56o u0c344c wuzqz

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 aw67l zy70hg aysywz7 o )k00hdtmosphere

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

  Figure - Layers of the at h0)3wc sg*,admxa 2xjg:ivy 2mosphere

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 follsz(:.adluh7;m kmuw 2owing 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 following combinations ref /le 62xctrk0jee db 2c/k3)mylects the correct approximate composition of the Atmosphere with respect to the three main /c6r2j0ke /ekc em3b 2 ylxtd)gasses shown:

  Identify which of the following z*x)ffpri2 0r 7cmy (fis not true about atmospheric carbon dioxide levels over tfzif0(mxfry rp2)c *7he 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 would have theqbnb; yj ggio+g*9u/,;v j wh7 highest albedo.