Landfills & waste management
What are the environmental risks of throwing hazardous waste (like batteries) in the trash?
They can leak harmful chemicals into soil and water
Why is it important to prevent rainwater from entering a landfill?
It can create dirty liquid that pollutes the soil and water.
What are the major greenhouse gases?
Carbon dioxide, methane, and nitrous oxide
Which relationship is commensalism?
A tick feeding on a dog
A clownfish living in a sea anemone without harming it
Wolves hunting deer
A clownfish living in a sea anemone without harming it
What were Mendel’s main observations in his pea plant experiments?
Traits like flower color and seed shape are inherited in predictable patterns.
Estimate the average pounds of trash a person produces in a week.
About 30 pounds
Which government agencies are involved in regulating landfills?
The Environmental Protection Agency (EPA) and local health departments
Which of these options lowers greenhouse gas emissions?
Decreasing meat consumption
Driving less and walking or biking more
Recycling and reducing waste
All of the above
All of the above
How does energy flow through an ecosystem (in a food chain or pyramid)?
Energy moves in one direction from the sun to producers, then to consumers and decomposers.
What is Codominance?
When both alleles for a trait are fully shown in the offspring
What percentage of household trash is usually food waste?
5, 15, 30, or 60
About 30%
How do landfills contribute to climate change?
They release methane gas, which traps heat in the atmosphere.
What role does carbon dioxide play in climate change?
CO₂ is a greenhouse gas that traps heat in Earth’s atmosphere, contributing to global warming.
How much energy is transferred from one level to the next in a food chain? What is this rule called?
About 10% of the energy : The 10% Rule
What is incomplete dominance?
When the offspring shows a mix or blend of both parents’ traits
What is the difference between biodegradable and non-biodegradable waste?
Biodegradable waste breaks down naturally over time; non-biodegradable waste does not.
What are microplastics, and how do they enter ecosystems?
Tiny pieces of plastic that come from breaking down larger plastic items and enter water and soil.
What is anthropogenic climate change?
Climate change caused by human activities like burning fossil fuels
Which relationship is mutualism?
dog and tick
bird and flower
goat and grass
bee and hornets
bird and flower
What is the probability of two heterozygous parents having a recessive child?
25% (1 in 4 chance)
How does composting reduce greenhouse gas emissions?
Composting turns organic waste into fertilizer instead of letting it rot and release harmful gases like methane.
What does "organic waste" mean?
Waste made from living things like food scraps and yard clippings that can decompose naturally.
What are CFCs? / What do CFCs do?
Chlorofluorocarbons are chemicals used in things like refrigerators and spray cans that break down ozone molecules and create holes in the ozone layer.
What role do keystone species play in ecosystems?
They help keep the ecosystem balanced by affecting many other species.
What is Mendel’s Law of Segregation?
Each parent passes only one copy of a gene to their offspring, and the copies separate during reproduction.