Forests and Land
Cutting down trees is called
Deforestation
All the water on Earth is called the:
Hydrosphere
Dirty air, water, or land caused by humans is:
Pollution
The ocean is mostly made of this type of water:
seawater
Rain washes trash into a river. This is:
Planting trees to replace ones that were cut down is:
Reforestation
Water found in rivers and lakes is:
Freshwater
Too many nutrients in water causing algae growth is:
eutrophication
Big circular ocean currents are called:
gyres
Fertilizer goes into water → algae grows. This is
eutrophication
When a small town grows into a big city, it is called:
Urbanization
Water in the ocean is:
seawater
Too many buildings and roads can cause more:
Runoff
Areas with very little oxygen in the ocean are called:
dead zones
Cutting trees → animals lose homes. This is:
habitat loss
Fixing land after mining or damage is called:
Reclamation
Water that flows over land after rain is:
What is runoff
Using less chemicals and trash helps reduce:
pollution
When oxygen in water decreases, it is called:
deoxygenation
Pollution in water → fish may:
die
When trees are removed, animals lose their:
Habitat
Water stored underground is found in a:
aquifer
Using too much water from underground can harm:
aquifer
The ocean provides what? 2 things
food/medicine
Too much algae → less oxygen → this forms:
deadzone