Fun fact
what the largest organ
skin
Pollution in the air is called this.
air pollution
Human ecology studies the relationship between humans and this.
environment
soil is important because plants grow in it. True or false?
true
Cutting down too many trees is called this.
deforestation
Plants make their own food using this process.
photosynthesis
Trash in oceans mostly harms these animals.
marine animals
People using natural resources like water and trees is called this.
resource use
This is when soil is worn away by wind or water.
erosion
Burning fossil fuels adds this gas to the air.
carbon dioxide
This organ pumps blood through your body.
What is the heart?
This type of pollution happens when chemicals enter water.
water pollution
This happens when there are too many people for resources.
overpopulation
Planting trees helps prevent this.
soil erosion
This causes Earth’s temperature to rise.
global warming
Animals that eat both plants and meat are called this.
omnivores
This type of pollution happens when chemicals enter water.
water pollution
Humans changing land for cities is called this.
urbanization
This method uses steps on hills to stop erosion.
terracing
Throwing trash in landfills affects the environment in this way.
pollution
This gas do humans breathe in to survive?
oxygen
This is when loud sounds harm people and animals.
noise pollution
This is meeting needs without harming future generations.
sustainability
This is protecting soil and natural resources.
conservation
Using solar and wind energy helps reduce this problem.
pollution (or climate change)