Land
What is waste disposal & what are some negative impacts? (Why do we have more waste?)
Waste disposal is when we throw away trash.
1. hazardous waste can poison water & land 2. can accidentally create litter 3. takes up space
(The world’s growing population increases how much trash we throw away)
What is smog, what causes it, & what are some negative impacts?
Smog is an air pollutant that creates a thick, dirty haze.
Burning fossil fuels causes it.
It harms people’s health.
What is Earth’s current population?
Earth’s current population is 8.3 billion people
What is hazardous waste, and how can it harm Earth if put into a landfill?
Hazardous waste contains poisonous materials that can leak into and contaminate the land and any groundwater below the landfill.
What is deforestation & what are some negative impacts? (Why do we have more deforestation?)
Deforestation is when we cut down forests/trees
1. loosens soil & good soil can be washed/blown away 2. less habitats = less life 3.less fresh oxygen & more CO2
(The world’s growing population increases how many trees we cut down for buildings & other paper/wood products)
What is acid precipitation, what causes it, & what are some negative impacts?
Acid precipitation is an air pollutant that reduces the PH of rain/snow
Burning fossil fuels & sulfur from volcanoes cause it.
It harming living things (trees, plants, fish, etc)
How has Earth’s population changed over the past ~150 years?
Earth’s population has dramatically increased over the past ~150 years
What does good, natural ozone high up in the atmosphere do for us?
It blocks the sun's UV rays, protecting us from skin cancer
What is agriculture & what are some negative impacts? (Why do we have more agriculture?)
Agriculture is the food we farm
1. farming uses a lot of land space 2. can contaminate water from fertilizers/pesticides 3. destroys soil quality (farming steals nutrients, causes erosion, etc)
(The world’s growing population increases how much food we need to farm)
What are CFCs, what causes it, & what are some negative impacts?
CFCs are an air pollutant that destroys good ozone
Old refrigerators and air conditioners cause it
CFCs increase the chance of skin cancer bc when good ozone is gone, more of the sun's UV rays reach us
Define natural resources and give examples.
Natural resources are the things we use from Earth
Examples are water, food, land, and much more!
How can food waste become a problem for Earth?
When most food decays without oxygen, it produces gases that harm the atmosphere
What is urbanization & what are some negative impacts? (Why is urbanization increasing?)
Urbanization is when there are a lot of buildings/cities
1. harms natural habitats 2. increases chances of flooding bc the rain can't go into the ground (runoff)
(The world’s growing population increases how many cities we have)
What is particulate matter, what causes it, & what are some negative impacts?
Particulate matter is an air pollutant from small pieces of dust & smoke
Burning fossil fuels, volcanic eruptions, & forest fires create particulate matter
Particulate matter causes difficulty breathing & coughing
How does Earth’s population change affect its resources?
More people = more resources being used = more impacts on Earth & fewer resources available
Can pollution happen naturally?
Yes, pollution can be caused by volcanoes and natural wildfires
From this lesson, what are the 4 main ways humans impact land?
Waste disposal
deforestation
agriculture
urbanization
From this lesson, what are the 4 main ways humans impact the atmosphere?
Smog
Acid precipitation
CFCs
Particulate matter
What are the 3 fossil fuels & what do humans use them for?
The 3 fossil fuels are coal, oil, and natural gas
We use them for energy, such as heating/cooling buildings, transportation, electricity (charging phones, watching TV, kitchen appliances, etc.)
What daily habits can humans change to help the planet?
eat less meat and more fresh food (not packaged)
buy less stuff
drive with more people in the car or drive less
use water wisely