Why is guano a good fertilizer?
It contains nutrients that plants need for growth
Natural Gas
The presence of substances in the environment that are harmful to humans and other organisms
The practice of protecting the environment and using resources carefully
conservation
What does this symbol mean?
This object can be recycled
How are limited resources similar to unlimited resources?
Both provide energy people need
What is the original source of energy that people can use?
The Sun
A change that happens because of some kind of action
effect
What is a way you can protect Earth's resources in your own life?
recycle, reuse items, conserve energy, don't waste water...
This word means to put things into groups
Classify
What would happen if we didn't have soil?
We would have very few kinds of food to eat
Energy that comes fromm the movement of water
hydroelectric energy
Name a way that people can reduce human impacts on the environment
- Use fewer resources
- reusing materials
- conserving resources
There would be fewer wolves living in the park
Water is a renewable resource, but what is the problem with it?
It is not evenly distributed around the Earth
Why is carefully using nonrenewable resources important?
If we do not take care of resources, they might run out or become unsuitable for use
water power, wind power, solar power
What action could people take if a report showed that air quality was hazardout?
stay indoors, wear protective masks, avoid doing errands
What do national and state parks do to help the environment?
They preserve natural areas with rare features
What does reducing the resources we use do for the environment?
It decreases the amount that needs to be produced
What is the difference between a mineral and a rock?
Minerals are nonliving, naturally occurring materials from Earth. Rocks are too, but they are made up of minerals.
Name a way a renewable resource can affect the environment
- Dams can change the flow of water in natural systems
-Wind turbines can harm birds and bats
-Large systems to collect solar energy to cover the land that could be used for other purposes
How does human activity affect Earth's natural environments?
Humans can change environments when they mine, build homes, or pollute
How are green homes and electric cars alike?
They are designed to use smaller amounts of energy and use renewable energy
environmental scientist