Ms10 Flashcards
What causes global warming?
Part is natural; the Earth’s oblong shape results in warming and cooling cycles. This is made worse by humans burning fossil fuels that emit a greenhouse gas , CO2; A larger population a larger fossil fuel use
What does global warming lead to?
- Sea level rise(melting ice, H20 expands) 2. higher primary productivity(more CO2) 3. Higher temperature (ocean warming) 4. Ocean acidification 5. increased frequency and severity of storms 6. extinction of species
What does ocean warming lead to?
- Sea level rise 2. extinction and endangerment of temperature sensitive marine organisms 3. Sea ice and land ice melt causing sea level rise and a decrease in salinity
What must you do if a habitat shifts?
Adapt or go extinct
Give an example of a negative affect of ocean acidification?
Coral reefs. The symbiotic algae (zooxanthellae) can not tolerate ocean acidification so they leave the coral. Without the algae to help make food the coral die(called coral bleaching)
How does sun radiation pass through the atmosphere?
As short wave radiation
What havens to the heat?
Earth absorbs some, re-releases some, and some is trapped
What are some greenhouse gases?
Methane, CO2, water vapor (holds heat well)
Where is the majority of heat absorbed
In the oceans
What has CO2 done over the years?
Increased steadily
Where are our CO2 levels
They are at 400 PPM. it has not been this high since at least 800,000 years
Where does the CO2 emissions go?
65% to atmosphere 35% to ocean
What happens when water and carbon dioxide mix?(H2O+CO2)
Makes hydrogen ions (H+; increases acidity), and Bicarbonate ions(HCO-3)
What is neutral on the pH scale?
7
Lower than 7pH is?
Acidic (more H+ concentration)
