Ecosystems Flashcards
(43 cards)
What increases CO₂ levels in the atmosphere?
Respiration, combustion, deforestation
What is combustion?
Burning fuels
What absorbs carbon dioxide?
Forests (photosynthesis), ocean, and soil
Name three non-renewable energy sources.
Coal, oil, natural gas (fossil fuels) and nuclear energy
Name three renewable energy sources.
Solar energy, wind energy, geothermal energy, tidal energy
Why do humans remove forests?
For land (development) and resources
What is one effect of deforestation?
Habitat destruction
What does ocean acidification do?
Reduces ocean pH due to increased carbon dioxide
What is an ecosystem?
A network of interactions between living and non-living things
Give an example of an abiotic factor.
Temperature, water, light, air gases, nutrients
Give an example of a biotic factor.
Plants, competition, disease, decomposers
What is a native species?
A species that naturally belongs to an ecosystem
Name two native species in Bali.
Bali myna, Sunda leopard cat
What is the role of forests, the ocean, and soil in the carbon cycle?
They absorb carbon dioxide
Give an example of a non-fossil fuel energy source.
Nuclear energy
List two fossil fuels.
Coal, oil, methane
Name two sources of renewable energy.
Wind energy, tidal energy, solar energy, geothermal energy
What is geothermal energy?
Heat energy from inside the Earth
What is one major effect of deforestation?
Habitat destruction
What does increased CO₂ in the ocean cause?
Ocean acidification
What is an ecosystem?
A system of interactions between living and non-living things
What is an invasive species?
A species introduced to an ecosystem where it does not belong and multiplies quickly
What does ‘extinct’ mean?
A species no longer exists
What does ‘eradicate’ mean?
To completely remove or destroy
