Cwestiwn Mawr

Sut mae cynhyrchedd cynradd a llifoedd egni’n gweithredu mewn ecosystemau?

Cwestiynau

Nodwch yr amrywiaethau mewn lefelau cynhyrchedd cynradd y biomau a welir yn Adnodd A.

Dadansoddwch effaith tymheredd, dyodiad a heulwen flynyddol ar gynhyrchedd cynradd biomau (Adnodd B).

Cyfrifwch faint o egni sy’n cael ei drosglwyddo i bob lefel troffig yn Adnodd C.
Amlinellwch sut mae llifoedd egni’n gweithredu mewn ecosystemau.

Adnodd A

Ffynhonnell: https://earthobservatory.nasa.gov/global-maps/MOD17A2_M_PSN
These NASA images were made by Reto Stockli, NASA's Earth Observatory Team, using data provided by the MODIS Land Science Team.

Ffynhonnell: https://commons.wikimedia.org/wiki/File:Biomes.jpg
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Adnodd B

Ffynhonnell: https://commons.wikimedia.org/wiki/File:Annual_Average_Temperature_Map.png
Author Robert A. Rohde / Berkeley Earth - This file is licensed under the Creative Commons Attribution 4.0 International license

Ffynhonnell: https://commons.wikimedia.org/wiki/File:World_precip_annual.png
Author Jackaranga - This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International, 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic license.

Ffynhonnell: https://en.m.wikipedia.org/wiki/File:Sunshine.png
Adnodd C

Ffynhonnell: https://en.wikipedia.org/wiki/File:EcologicalPyramids.jpg
Author Thompsma - This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.