Ocean Acidification:
The process in which the ocean’s pH decreases, making it more acidic.
Ocean Acidification
The ability to be able to have the choice and participation in your own food system
(Food Sovereignty)
(True or false) droughts are decreasing in intensity and frequency in the Southwest and West.
False
Define Alleles and Genes
Gene: Basic unit of inheritance between offspring Allele: Different forms of a gene, leads to different traits in individuals such as eye color
scale used to measure how acidic or basic something is, acidity is a measure of H+
pH scale
Main cause of Ocean acidification?
More CO2 in the air due to climate change
1950-1970; the period of technology transfer initiatives that saw greatly increased crop yields.
The Green Revolution
The era in which we have temperature records for Earth’s surface air temperature that are based on readings taken from thermometers
The Instrumental Period
the number of different species in an area, Is this the definition of species richness or species evenness?
Species richness
Rapid movement of carbon between the atmosphere, oceans, and living organisms.
(Fast Carbon Cycles)
What is the food web impact of Ocean acidification?
Less fish in the sea due to an increase in inhabitable conditions
When we eat foods and move up tropic levels in the food chain, only this percent of energy or biomass from the previous tropic level is transferred.
10%
Average life span in the atmosphere for CO2? (in years)
50-200
What are the two components of the biodiversity planetary boundary?
Genetic and Functional
Three ways to “fix” Nitrogen
Lightning, Nitrogen Fixing Bacteria, Haber bosch process
Currents that bring up nutrients from deeper levels to the surface resulting in high levels of biological activity
Upwellings
What develops from the overuse of antibiotics in CAFOs?
antibiotic resistant bacteria
What greenhouse gases trap heat in the Earth’s atmosphere?
(Water vapor, CO2, and methane)
One way to measure biodiversity?
Study ecosystems OR Study individual organisms in a species/Study a population
What are three ways to reduce human impact on the c-cycle?
reducing fossil fuel use, enhancing carbon sinks, and sustainable agricultural practices
Large-scale ocean circulation driven by surface and deep-water ocean currents and changes in water temperature and salinity?
Thermohaline conveyor
Scientists use of selective breeding to improve and alter crops; it was the key to success in the green revolution
Genetic manipulation
How much have sea levels risen since 1880?
Around 9-10 inches
What percent of the peppered moth population had a dark body after the Industrial Revolution and what specific topic brought about this change?
95-98%, Natural Selection
Cannot function in the presence of oxygen and instead live in anoxic environments
Methanogens