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Forests
Oceans
Food Systems
Freshwater
Misc
100

This is the biggest driver of deforestation in the tropical rainforest.

What is cattle/grazing

100
The delicacy that has led to millions of sharks being killed each year

What is shark-fin soup

100

The name for farms with huge numbers of chickens, pigs, or cows kept in cages or pens.

What are CAFOs or Factory Farms

100
The name for chemicals sprayed on crops to kill weeds that often runs off into local streams. 
What are herbicides
100

This gas is 20-25 times more potent of a greenhouse gas than carbon dioxide.

what is methane?

200

This is the term for cutting all the trees from an area leaving soil very vulnerable to erosion

Clear-cutting

200

The part of the whale harvested for use for lamp oil in the 1800's that greatly reduced whale populations.

What is lamp oil

200

This has caused a dead zone in the gulf of Mexico

Agricultural run-off from the Mississippi River

200

Wetlands slow surface run-off reducing potential damage from this downstream.

What is flooding

200

When a species is moved by people to a new region where it lack predators and competitors so it outcompetes native organisms.

What is an invasive species?

300

A forest crop that is usually grown in monoculture (there are many)

Coffee, Palm oil, Cocoa, Pulp wood

300

The word for taking of wildlife from the sea at rates too high for fished species to replace themselves

What is overfishing

300

This Biome makes the best agricultural land

What is grassland/prairie

300

These are the two main nutrients that are polluting our streams and lakes from run-off

What are Nitrogen and Phosphorous

300

Breaking wildlands into smaller patches by agriculture, buildings, and roads

What is habitat fragmentation
400

The pool of carbon molecules that build the mass of a tree

What is the air

400
Oceans absorbing CO2 from the atmosphere is leading to this change in ocean chemistry

What is ocean acidification

400

Biogas digesters convert manure from farms to this burnable gas.

What is methane?
400

This type of water pollution occurs from building and construction run-off and it can clog the gills of aquatic animals.

what is sediment pollution?

400

Albedo is a measure of what property?

What is reflectivity?

500

The word for taking carbon from the atmosphere and trapping it in terrestrial biological systems.

What is sequestration

500

Small aquatic organisms take up toxins which build up in the food chain causing large fish to have high levels of the toxin

what is biological magnification

500
This type of decomposition reduces the amount of methane from manure compared with slurry pits.

What is aerobic decomposition?

500

Sewer pipes and roadside water drains are in one pipe that has to be released to the local river or stream during large rain events

What are combined sewer overflows

500

This continent will show the highest human population growth over the next decade.

What is Africa