Earths Life Support Systems

Question 1

Physical carbon sequestration

Answer 1

When cold ocean water sinks, taking with it absorbed carbon

Question 2

Biological carbon sequestration

Answer 2

When phyktoplankton draw carbon from the surface of the water, combines with h20 and sunlight to produce organic material

Question 3

What is a flow?

Answer 3

A process

Question 4

Troposphere

Answer 4

The lowest point of the Earth’s atmosphere where all water is. Contains 75% of the atmospheres mass and 99% of its water vapour and aerosols

Question 5

Environmental lapse rate

Answer 5

The decrease in temp expected with an increase in height through the troposphere. ⬆️1 km= -6.5 degree drop in temp. Varies depending on factors like season.

Question 6

What 4 categories do carbon stores fall into

Answer 6

Hydrosphere (includes oceans, oceanic flora and fauna)

Biosphere (land fauna and flora)

Lithosphere (fossil fuels, decaying materials, soil, pleat etc.)

Atmosphere (0.04% carbon dioxide, CH4)