Patterns of Global Climate Change- Science

Troposphere-

Higher oxygen pressure/ weather events (rain, wind, e.c.t.)

Stratosphere-

Ozone layer absorbs with radiation

Mesosphere-

Meteorites burn up here

Thermosphere-

High energy radiation from sun absorbed.

Exosphere-

Escaping gases in space, no protection to biosphere.

What are the three cycles:

Nitrogen (N), Water (H20), Carbon (C), and Phosphorus (P).

What’s the phosphorus cycle?

• How phosphorus moves from the lithosphere to the hydrosphere, through food chains and back.

•Phosphorus is an important component of fertilisers, which are used to provide nutrients to plants and improve their growth and crop yield.

•As there is no major gaseous forms of phosphorus, so it is not a Greenhouse gas, but is needed for plants and algae to grow and absorb CO2 through photosynthesis

What’s the nitrogen cycle?

The nitrogen cycle represents how nitrogen moves through the biosphere. Nitrogen is important because:

•our cells require it to make our DNA and proteins such as enzymes and hormones

plants require it to make chlorophyll, which is used in the process of photosynthesis

Cons of deforestation:

More carbon dioxide in the atmosphere as there are fewer green plants available for photosynthesis to absorb it. A

negative impact on the carbon, nitrogen and phosphorus cycles. The reduction in trees changes how these three elements are able to move through their cycles, which in turn affects ecosystems, plant life, habitats and so on.

•an increased probability of desertification occurring: when a flourishing, viable habitat disintegrates into a dry and arid region. As there is now less water on the surface for the Sun to evaporate. There is more energy to warm the ground and the lower atmosphere.