the process of restoring land to a more productive state
What is land reclamation or reclaiming the land?
100
a pollutant that has been released into the air
What is an emission?
100
the depth at which a well must reach to access water
What is the water table or aquifer?
100
what wetlands act like when water moves through them and wastes settle out or are absorbed by plants
What is a filter
100
exposing soil by using the land can lead to this
What is erosion?
200
the layer of soil where plant roots absorb nutrients and water
What is topsoil?
200
walking or riding a bike prevents this
What is pollution or emissions?
200
an underground layer of rock that allows water to flow through it
What is an aquifer?
200
these are important because they help control floods by absorbing extra runoff from heavy rain
What is a wetland?
200
an example of recycling
What is collecting aluminum, glass, metals, cardboard, plastics, or finding a new purpose for an old material
300
a word used to describe using land to grow food crops
What is agriculture?
300
a thick haze formed when certain gases react with sunlight
What is smog?
300
97%
What is the percent of salt water on Earth?
300
habitats and wildlife have greatly declined due to the urbanization and development of this region in south FL
What are the Everglades?
300
an example of reducing your wastes
What is buying in bulk or donating clothes
400
three ways we can reduce the amount of waste in a landfill
What are reducing, reusing, recycling?
400
what is made when air pollution mingles with our water cycle
What is acid rain?
400
agricultural wastes that enter our water supply and cause algal blooms
What are fertilizers?
400
cleaning up oil and gas spills, treating sewage, and properly disposing of paint thinners and motor oils help reduce this
What is water pollution?
400
water pollution that blocks sunlight, preventing photosynthesis, and covers up food sources and eggs for aquatic organisms
What is sediments
500
three ways that farmers can prevent nutrient depletion
What are no till, contour, not plowing deep, terracing, fertilizers, or borders?
500
this blocks many harmful UV waves in the sky from reaching earth
What is ozone?
500
3 ways one can conserve water in the home
What is capturing grey water or rain water, shutting off water while brushing teeth or washing dishes, wash full loads of laundry, water plants in the morning, buy low flow appliances
500
when a lake slowly transforms into a meadow due to a build up of dead organisms on the lake bottom, sometimes accelerated by fertilizer runoff