5.1 - Food Security & Agriculture
When all people, at all times, have physical, social and economic access to sufficient, safe and nutritious food that meets their dietary needs and food preferences for an active and healthy life
What is Food Security?
Any energy resource that can replenish or renew within a certain amount of time. (Usually within a human generation)
What is Renewable Energy?
Any energy resource that cannot replenish for hundreds, thousands and sometimes millions of years.
What is Nonrenewable Energy?
The THREE R's stand for what?
Reduce, Reuse & Recycle.
Over $200,000,000 of agricultural revenue is lost yearly due to weather related disasters. $175,000,00 of the $200,000,000 was lost due to Drought & Wildfires. Calculate the % lost due to Droughts & Wildfires.
What is 87.5%?
Using subsistence agriculture, increasing food production through intensification & extensification, using aquaculture & hydroponics, using GMOs & pesticides, decreasing livestock and increasing food crops, reducing food waste, stockpiling food, protecting pollinators, creating food programs like Food Aid and even rationing food are all possible strategies for managing and reducing what?
What is Food Insecurity?
Water moves from a higher elevation to a lower elevation. This water spins turbines which are connected to generators. This converts water's potential and kinetic energy into mechanical & electrical energy, which is then sent to the electric grid.
What is Hydropower?
OR
What is Hydroelectric Power?
THREE of the FOUR Nonrenewables are fossil fuels. What nonrenewable energy is NOT a Fossil Fuel?
What is Nuclear Energy?
Identify TWO methods of Waste Management.
What is Landfills/Dumps, Waste Incineration, Disposal at Sea, Recycling & Exporting Waste?
Benefits of multipurpose dams:
- Source of Freshwater
- Generation of Electricity
What is another benefit not mentioned above?
Any of the following:
- Recreation like swimming and fishing.
- Storage & use for irrigation.
- Controls flooding.
The number of droughts & extreme droughts is increasing due to __________________.
What is Climate Change?
Biomass (biofuels like ethanol), geothermal, Hydroelectricity (Tidal & Wave energy), Solar & Wind Energy are all types of what?
What is Renewable Energy Resources?
What are the FOUR Nonrenewable Energy Resources?
1. Coal
2. Natural Gas
3. Oil / Petroleum
4. Nuclear
Benefits of this Waste Management include less waste in landfills & newer facilities can turn the waste into energy. Negatives include the release of GHGs, pollutants and toxic ash as well as it uses a lot of energy to operate.
What is Waste Incineration?
The reliable availability of energy sources at an affordable price with a consideration of the environmental impacts.
Why do Droughts increase the risk & strength of Wildfires?
Acceptable Response:
- Droughts cause vegetation to die and/or dry out which is the main fuel source for wildfires. The more droughts we have the more wildfires and the more extreme wildfires that can occur.
Using less energy/electricity or wasting less energy/electricity.
What is Energy Conservation?
Using less energy to perform the same task or get the same result.
What is Energy Efficiency?
We can reduce the impacts of waste disposal by reducing, reusing & recycling, turning food waste into animal feed, composting, using waste-to-energy facilities, educating the public and by creating financial incentives and legislation the fines people & companies that waste. What is ONE other way we can reduce our impacts of waste disposal that is NOT listed above?
What is using Biodegradable Plastics?
The buildup of substances or toxins in an organisms over time. The organism is consuming the substance/toxin at a rate faster than the substance can be expelled from the body.
What is Bioaccumulation?
How can we mitigate/reduce the impact of droughts on agriculture production?
Any of the Following:
- Using conservation & sustainable agriculture strategies like No Tilling, Cover Cropping, Agroforestry, Crop Rotation or Intercropping.
- Planting drought-resistant crops or GM Crops that are drought resistant.
- Using better irrigation techniques like Drip Irrigation that require less freshwater.
This type of solar energy converts light into electricty.
What is
- Photovoltaic Solar Power OR Photovoltaic Cells OR PV Cells.
Fossil Fuel Depletion, inequality in global energy resources, different energy needs in HICs & LICs, supply disruption & even piracy are all causes of Energy Insecurity. Name TWO other causes of Energy Insecurity not mentioned above.
TWO of any of the following are Correct:
- Climate Change
- Natural Disasters
- Population Growth
- Terrorism
The US creates ~ 300,000,000 tons of waste every year. Nearly 25% of that waste is recycled. Calculate the mass of waste that IS recycled.
75,000,000 tons of waste is recycled.
Define Biomagnification.
Acceptable answers:
- The buildup of a substance or a toxin in a food chain.
- the increasing concentration of persistent, fat-soluble toxins in the tissues of organisms at higher levels of a food chain