Resources
What are renewable resources?
always available or naturally replaced in a short time
What is pollution?
contamination of Earth’s land, water, and air
Are forests renewable or non renewable?
Renewable- they grow back in shorter periods of time and have renewable resources (like seeds and fruit)
What's a fishery?
area with a large population of fish for food
What's a natural resource?
a resource from the environment that’s used by people.
What are non-renewable resources?
non-replaceable or takes long time to regenerate
What increases pollution?
burning resources and population growth
What is logging?
Cutting down trees
Name one sustainable fishing limit
Limit on number of fish
limit on size of fish (age)
Are fisheries a renewable or non-renewable resource?
Renewable
Name a renewable resource
Ex: Sun, Water, Wind
What is environmental science?
study of natural processes in the environment and how humans affect them.
What is clear cutting and why is it used?
all trees at once- is quick, cheap, safer for workers
Name one sustainable fishing method
using different nets instead of poison/stunners
switching species of fish to catch so that the same species is not always being caught/depleted
Why is clear cutting more damaging?
immediate loss of lots of oxygen, loss of habitats, damaged soil, No fast regrowth unless all trees are replaced, open soil can be blown into water and harm organisms
Name a non-renewable resource
What do scientists consider before starting an environmental project?
Cost (both money and damaging effects) and benefits
What is selective cutting and why is it used?
cutting down some and leaving a mix of them behind- less damaging to the environment
Free points!
Yay!
What is the name of the tree that helps prevent erosion?
Mangrove
How does population affect resources?
More population: more resources being used so less readily available, more pollution
Less population: less resources being used so more readily available, less pollution
What is sustainability/sustainable yield?
harvesting/using renewable resources regularly without reducing/damaging the future supply
Ways forestry can be sustainable
plant a certain amount of young trees (not seeds) to replace ones cut down
harvesting depends on how fast trees grow- don't cut down trees often that are going to take a long time to re-grow
Daily Double: Define aquaculture, name one benefit of it, and one negative effect.
fish farming (raising fish in ponds and enclosed areas in the ocean)
Benefit: Less population depletion, easier to catch, cost efficient transport
Negative: can cause pollution & spread disease into wild fish areas
Living Resource: Fruits, Seeds, Maple syrup, Rubber, Nuts
Nonliving resources: lumber, wood pulp for paper
Other: Produce Oxygen and take in CO2 and other pollutants, roots prevent flooding and control soil erosion